WASD to move. Space to get items and use locks. You must be holding the key. Change the graphics in the title screen. E to swap items. (chests will not show you the item) Find 6 Keys. You basically wander the map.
This is more of a Tech Test or demo of a tilemap engine I made than a game. There is not much unusual about it. You can Edit the map by brodcasting "editor" in the code. When in editing mode, click a block to edit. Click B and type in your block to switch it. You can use this to edit the tilemap if you would like to use the tilemap engine.