No sprite sheet support. Poor animation support
Handling animation by adding a node for 2… 4… and 6 direction movement
Allowing you to have a sheets of sprites
Y sorting layers instead of the priority system
Another issue is no support for auto screen fitting. Obviously the engine can get the information needed for this as manually you can add this to a game but it is difficult and clunky.
Better nodes for ai management. I.e. move to location… instead of linear interpolation being used. Or timers and velocity
Better export support. If a game can’t be fixed in a short ammount of time people just won’t want to use the engine.