In-game controls: W ↑ ASD or ←↓→ to move around Editor controls: Click to place blocks. 0 - Editor Mode / Exit Editor Mode 1 - Ground Blocks (press again to cycle through blocks) 2 - Hard Blocks, Mystery Blocks 3 - Semi-Solid Blocks (↓ or S in play mode to fall through them) 4 - Coins, Mario Spawn Point, Cloud Blocks, and Bushes. 9 - Entities such as Goombas and Mushrooms Q - Auto-Arranging tiles(a little buggy, can someone tell me what's wrong?) I'll update when another Griffpatch tutorial releases, thank you.
Credit to Griffpatch for youtube tutorials.