Glad you liked it! The controls should work that you hold shift and then (while holding shift) press the key(s) for the direction you want to aim (the bomb doesn't need aiming, but everything else does). So if you were trying to hold directions and then press shift, then that wouldn't be registered. If you're experiencing an issue other than that, it's a bug. That's a good point about showing that shift is registered. But yeah, the controls are not necessarily the easiest to use. If we do more work on the game, we'll look into making the controls better.