You can move The Red Toad around with the left & right arrow keys, and he will jump with the spacebar. Press T to talk to NPCS - you can only talk to Banana and Purple Toad as of right now. Press E to enter doorways...and R to exit them. I plan to add interactable objects in the future... Anyway, enjoy!
Credit to Mariobro19 and Yoshi77 for sprites and thanks to hankinsacadamy for the ideas from his remix. Remix on!!! In version 2, I added controllability to Red Toad, more advanced background mechanics, NPC chat, etc.