I tested it again and the input thing on transition actually isn't there, but looks more like a side effect of the screen transition still animating and locking the controls. It looks like the transition is done, but I think it's still lerping so it feels like I should be able to move, but can't until a second later. As for the direction keys, it's not an input delay, but rather how you're processing the input. If I hold right, Biboo goes right. While holding right, I press up to move upward and Biboo goes up. I let go of up but still holding right in order to continue going right, Biboo stops. I can't go right unless I let go and press it again. This might have been the reason why I thought the transitions reset the controls because I'm usually still holding a direction and nudging left/right when I enter a new screen, but this cancels the original direction and it feels like the controls stopped.
