just found those slopes are extremely buggy.
1. spikes doesnt kill if land on the slope below at a certain angle idk 2. half-block count as full block(since the grid is 1x1 i guess cannot be fixed except change the whole game physics) 3. can jump without touching the block/ground (the transition between ship and cube idk whether other mode works too) 4. idk how to explain just weird 5. hitbox problem 6. (at cube mode) those slopes can kill u at real GD but here doesnt 7. wave also. 8. mini wave can clip through the spikes 9. chainsaws hitbox broken 10. keep dying when die at ufo mode