Thanks for playing! I agree the controls are an issue, I'd much rather have things tied to the numpad, mouse buttons, or spacebar, and the enemies are too alert/aggressive for good stealthing, so we'd improve and balance those first!
As for the memory spawns, the whole world is randomly generated, so each spawn is always in a different place (and they don't stay spawned off-screen, either). We could definitely communicate that detail better, or make it more apparent the world is constantly regenerating.