I kinda like the idea. I think the game could benefit from being optimized for landscape rather than portrait mode. Pressing the spin button also causes the character to move a little. Also the overall movement is weirdly janky. Considering all enemies walk towards me, what´s my incentive for moving around at all, rather than just spin in place? Attacking is also a bit weird, at first I thought the character just attacks automatically, but he kinda needs to move first to then attack. Unless you intentionally want this to be a 1-hand game, I´d go with the landscape route and add a dedicated attack button. If not, I think the character should attack an enemy in range automatically. Oh and give the spin a cooldown, you can basically spam the button and t-pose at enemies.