You're right that it does feel a bit unfair. When the purple alien steals, let's say, your D key, and runs to the right, you can drag a key you're not using to the D box (let's say you dragged the S key to D box), now you can use S to move to the right and recover the stolen key. We forgot to explain this in the tutorial screen hehe... Still though, thank you so much for playing our game and giving us feedback! We appreciate it greatly <3