The combat, albeit simple, was very satisfying. Knockback and reach probably...need a nerf since they kinda solve combat entirely. I dumped every upgrade into that and basically bullied poor rissa with my big ol lollipop. I think you have the foundation of some interesting mechanics by rolling enemies around. You could definitely build upon that both with enemy variety and even puzzles if you're daring. I kinda liked how weighty liz felt but maybe thats just my enjoyment of slow dark souls characters speaking. If the game is intended to be a bullet hell, that could also be a valuable upgrade vector (speed and/or acceleration).