Thank you for the feedback!
Yeah maybe limiting each one to only one ability might be an option. All the ideas weren't implemented sadly. Fire ability is near useless. The charged shot should have been used against the boss to destroy some sort of magic shield but we ran out of time. Rock not being able to walk while the shield is active was supposed to be the case, but we didn't have any animation for it, so the feature was killed to gain some time.
And yeah, I understand for the camera. I'm not particularly an inverted player, both are fine to me but I wasn't expecting people to have so much trouble. I know we scrapped the options menu but maybe not inverting it should have be easier. I'll check that for my future projects.
Thank you!