thanks! enemy knockback is one of the things i wish i could've done better, currently you just get teleported a certain amount of pixels backwards which can be instant death in some scenarios. wasn't sure how to do it in an intuitive way that was fair in all situations though. my friend found that you can also damage boost by repeatedly jumping off enemies, which is funny and can make some levels easier to clear but it also tanks your score
yeah, that was the intended use of water - either use it to make some parts you struggle with easier, or save it to get bonus points if you care about perfecting every level (which is extremely difficult for the later levels, i will add)
level 7 has some pretty dodgy design at parts to be honest, especially the part just after the arrow.