Thank you for the feedback.
The default key bindings are provided by Pico-8. With the Enter-key you open it's pause menu, where you can rebind the keys to your liking/needs.
Dragging tiles as an alternative way to move them, as well as animations for the moves in general, is something I have still on my list, should I decide to make proper polished (or even rewritten in a different framework) after-jam release.