https://www.sharemygame.com/share/b67b7144-7169-482f-a6d8-0f0ddf4eb50b
Levels 3 and 4 add some extra stuff:
3: One-way blocks. Wind zones.
4: A flame that grants a second ball when hit (max 2 balls in play)
Level 2 is probably too hard. But I’m ready to move on.