I recently made 2 boss fights. There is a storyline, so if you want to follow it, go from the first to the second link.
AD to move left and right
W to jump
SPACE to shoot
E to dash
Wall climb is in the 1st fight, but not there in the second
The dash gives you invinciblity frames in the second game, but not in the first.
- Soulumus fight (https://arcade.makecode.com/S88863-04862-57941-44276)
- Asmodius fight (https://arcade.makecode.com/S15960-44240-49065-29463)