diff --git a/assets/world.txt b/assets/world.txt
index a32646a..8846b43 100644
--- a/assets/world.txt
+++ b/assets/world.txt
@@ -6,12 +6,21 @@ header
  .G = grasblock_lower.png
  ._ = _grasblock_upper.png
  ., = _erdblock_upper.png
-body
+ .a = _tree1_greenish.png
+ .O = ~Blockgrau.png
+links
 
-T   P
-TT      ,,,_______,,,______,___
-TTTTTTTTEEEGGGGGGGEEEGGGGGGEGGGE
-TTTTTTTTTEEEEEEEEEEEEEEEEEEEEEEE
-TTTTTTEEEEEEEEEEEEEEEEEEEEEEEEEE
-EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
-EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
+blocks
+TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
+T                                                                      T
+T                                                                      T
+T             O                                                        T
+T              O                                                       T
+T             O                                                        T
+T   P                                  _______           _             T
+TT      ,,,_______,,,_a____,___      __GGGGGGG_______TTTTTTTTTTTT      T
+TTTTTTTTEEEGGGGGGGEEEGGGGGGEGGGE     GGEEEEEEEGGEEEEETTTTTTTTTTTTTTTTTTT
+TTTTTTTTTEEEEEEEEEEEEEEEEEEEEEEE     EEEEEEEEEEEEEEEETTTTTTTTTTTTTTTEEET
+TTTTTTEEEEEEEEEEEEEEEEEEEEEEEEEE     EEEEEEEEEEEEEEEEEETTTTTTEEEEEEEEEET
+EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE     TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
+EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
diff --git a/src/game/player.rs b/src/game/player.rs
index eeba809..6131dce 100644
--- a/src/game/player.rs
+++ b/src/game/player.rs
@@ -1,4 +1,4 @@
-use std::{hash::Hash, time::Duration};
+use std::{any::Any, hash::Hash, time::Duration};
 
 use animation::{run_animations, AnimBundle, Animation};
 use bevy::{ecs::system::SystemId, prelude::*, sprite::MaterialMesh2dBundle, utils::HashMap};
@@ -7,7 +7,7 @@ use bevy_rapier2d::prelude::*;
 
 use crate::{AppState, METER};
 
-use super::{scene::PlayerCoords, set::IngameSet};
+use super::{scene::PlayerCoords, set::IngameSet, PLAYER_DEPTH};
 
 mod animation;
 
@@ -59,7 +59,7 @@ fn move_player(
     kb_input: Res<ButtonInput<KeyCode>>,
     mut query: Query<(
         &mut Velocity,
-        &Transform,
+        &mut Transform,
         &mut Player,
         &mut KinematicCharacterController,
         &mut Sprite,
@@ -70,7 +70,7 @@ fn move_player(
     player_coords: Res<PlayerCoords>,
     time: Res<Time>,
 ) {
-    let (mut vel, p_transform, mut player, mut controller, mut sprite, mut anim_state) =
+    let (mut vel, mut p_transform, mut player, mut controller, mut sprite, mut anim_state) =
         query.single_mut();
     let (mut cam_transform) = camera_query.single_mut();
     let (output) = phys.get_single();
@@ -88,7 +88,7 @@ fn move_player(
             moved = true;
             move_x += 1;
         }
-        if kb_input.pressed(KeyCode::Space) && grounded {
+        if kb_input.pressed(KeyCode::Space) && vel.linvel.y < 0.1 && grounded {
             moved = true;
             move_y += 1;
         }
@@ -97,7 +97,7 @@ fn move_player(
         cam_transform.translation -= ((orig - p_transform.translation.xy().extend(0.0)) / 30.0);
 
         controller.translation = Some(Vec2::new(move_x as f32 * 6., 0. - 0.01));
-        vel.linvel += Vec2::new(0., move_y as f32 * 3. * METER);
+        vel.linvel += Vec2::new(0., move_y as f32 * 6. * METER);
 
         if moved && move_x != 0 && grounded {
             *anim_state = PlayerAnimations::Walk;
@@ -105,6 +105,11 @@ fn move_player(
         } else if !moved {
             *anim_state = PlayerAnimations::Idle;
         }
+
+        if p_transform.translation.y < -10. * player_coords.block_size {
+            p_transform.translation =
+                Vec2::new(player_coords.x, player_coords.y).extend(PLAYER_DEPTH);
+        }
     }
 }
 
@@ -160,11 +165,16 @@ fn add_player(
             player_coords.get_collider(),
             LockedAxes::ROTATION_LOCKED,
             Velocity::default(),
+            AdditionalMassProperties::MassProperties(MassProperties {
+                local_center_of_mass: Vec2 { x: 0.5, y: 0.5 },
+                mass: 10000.0,
+                principal_inertia: 1.,
+            }),
         ))
         .insert(KinematicCharacterController {
             //translation: todo!(),
             //custom_shape: todo!(),
-            //custom_mass: todo!(),
+            custom_mass: Some(10000.0),
             //up: todo!(),
             offset: CharacterLength::Absolute(0.01),
             slide: true,
@@ -175,7 +185,7 @@ fn add_player(
             //}),
             //max_slope_climb_angle: todo!(),
             //min_slope_slide_angle: todo!(),
-            //apply_impulse_to_dynamic_bodies: todo!(),
+            apply_impulse_to_dynamic_bodies: true,
             snap_to_ground: Some(CharacterLength::Absolute(0.5)),
             //filter_flags: todo!(),
             //filter_groups: todo!(),
diff --git a/src/game/player/animation.rs b/src/game/player/animation.rs
index 3ad6565..579a306 100644
--- a/src/game/player/animation.rs
+++ b/src/game/player/animation.rs
@@ -29,7 +29,7 @@ pub fn run_animations<Tag: Hash + Eq + Component>(
         anim.frame_timer.tick(time.delta());
 
         if anim.frame_timer.just_finished() {
-            dbg!(atlas.index);
+            // dbg!(atlas.index);
             if atlas.index >= anim.max_index {
                 atlas.index = 0;
             } else {
diff --git a/src/game/scene.rs b/src/game/scene.rs
index c689d80..a815b8a 100644
--- a/src/game/scene.rs
+++ b/src/game/scene.rs
@@ -28,7 +28,7 @@ impl PlayerCoords {
     pub fn get_collider(&self) -> Collider {
         let size = 0.5;
 
-        Collider::round_cuboid(size, size, 1.5)
+        Collider::round_cuboid(size, size, 2.0)
         // Collider::cuboid(size, size)
     }
 }
@@ -68,8 +68,9 @@ pub(super) fn import_text_world(
     mut player_spawn_oneshot: Res<PlayerSpawnOneshot>,
 ) {
     let world_string = fs::read_to_string("assets/world.txt").expect("need a world to load");
-    let [info_string, world_string] =
-        &readf("header\n{}\nbody\n{}", &world_string).expect("world does not have sections")[..]
+    let [info_string, links_string, world_string] =
+        &readf("header\n{}\nlinks\n{}\nblocks\n{}", &world_string)
+            .expect("world does not have sections")[..]
     else {
         unreachable!()
     };
@@ -109,6 +110,12 @@ pub(super) fn import_text_world(
                         (possible_block.1.to_owned(), true)
                     };
 
+                    let (tex, fixed) = if let Some(s) = tex.strip_prefix("~") {
+                        (s.to_owned(), false)
+                    } else {
+                        (tex, true)
+                    };
+
                     let x = i as f32 * wi.block_size;
                     let y = current_y as f32 * wi.block_size;
                     if tex == "[player]" {
@@ -126,7 +133,7 @@ pub(super) fn import_text_world(
                             &assets,
                             tex,
                             (x, y, len, wi.block_size),
-                            collider,
+                            (collider, fixed),
                         );
                     }
                     println!("spawned {possible_block:?} at {x}, {y}");
@@ -147,7 +154,7 @@ fn spawn_block(
     assets: &Res<AssetServer>,
     tex: String,
     (x, y, len, block_size): (f32, f32, usize, f32),
-    collider: bool,
+    (collider, fixed): (bool, bool),
 ) {
     let mut command = commands.spawn((
         Block,
@@ -162,8 +169,17 @@ fn spawn_block(
     ));
     if collider {
         command.insert((
-            RigidBody::Fixed,
-            Collider::cuboid(block_size / 2.0 * len as f32, block_size / 2.0),
+            if fixed {
+                RigidBody::Fixed
+            } else {
+                RigidBody::Dynamic
+            },
+            if fixed {
+                Collider::cuboid(block_size / 2.0 * len as f32, block_size / 2.0)
+            } else {
+                Collider::ball(block_size as f32 / 2.)
+            },
+            AdditionalMassProperties::Mass(1.0),
             Velocity::default(),
         ));
     }
diff --git a/src/main.rs b/src/main.rs
index d1f327c..e87a589 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,7 @@ use game::game_plugin;
 
 mod game;
 
-const METER: f32 = 60.;
+const METER: f32 = 100.;
 
 #[derive(States, Debug, Clone, PartialEq, Eq, Hash, Default)]
 enum AppState {