This is already really cool, keen to see the final product!
2 bugs I found:
- In the 3rd level, the snakes seem to be shifted down a pixel or something (i.e. the top on isn't touching the wall it is moving on and it makes it impossible to go under it)
- When you hold down to charge your shot and try to shoot, it doesn't always work if you are on the ground and I think it is because the collider is hitting the ground you are standing on immediately (maybe spawn the object a touch higher)