Use the arrow keys to move and t to chat. Its simple because its just an engine, add a platformer script and modify the code to make a cloud platformer! If you use this please give credit, preferably at the very top of the notes and credits section!
This engine support up to 8 players. Send more data over the cloud (ex. player costumes) by editing the define make cloud data block in the cloud sprite with another one of the custom blocks with the data you want to send (ex. costume number of player.) Then edit the cloud player's code to display the data (ex. switch costume to item (#) of data). (# depends on the order of the custom blocks in in cloud sprite.) Also if you backpack the sprites, remake cloud variables (p1 data) - (p8 data) before removing them from your backpack or else it won't work correctly.