I like the concept of working through a maze with a limited number of items. But as it stands now, having to keep one hand on the arrows to move side to side, one hand on space to jump, and one hand on the mouse to select and use items requires three hands so it doesn't work well for poor people like me with congenital hand deficiency syndrome and only two hands.
Fortunately it should be straightforward to make it more playable for people like me if 1) players could move with either WASD or arrows, 2) they can jump with W or Up in addition to space, 3) they can use numbers on the keyboard to select items to strike with, and maybe 4) having a "strike" key to destroy whatever object they player would be moving toward based on which movement key is being pressed (that could be space's new job). Although TBH you could just make it so the player automatically uses whichever tool would be needed to destroy the object they're trying to destroy instead of having to select it -- less clicking or button pressing needed.