Like other reviewers have said it was really hard to understand when I could shoot. Sometimes I'd hold z and shoot constantly while hopping and standing, other times I'd jump, move, stand still, tap z, hold z and still not shoot. Jumping feels very floaty, a little more effect of gravity countered by a stronger upwards force on the jump could address that if it's not what you're going for. Good basic platformer setup, just a matter of tuning the controls and movement will go a long way. Loved the FF7 theme to everything. If you build on this more then other classic platformer mechanics would be a great fit for Cait Sith: wall climbing and dashing for example. A knock back effect by shouting into the megaphone would also be very appropriate.