Z-Bot Lair


Hint:
Watch the Z-bot's movement carefully.

Full Solution:

Wait for a gaps in the lines of z-bots, moving left and up, collecting coins as you go. Eventually move to the white button. Wait on the white button while z-bots pass above and to your left. When the z-bots traveling above you reverse direction wait until they are passed and move up and to the right to the cannon room.

Wait immediately above and to the right of the cannon, and when a shot is reflected back and passes under you move quickly to the left to the next key. After collecting both keys in this room, move left and up to the hallway that leads down to the star. The square immediately to the right of the final key is a safe square. Wait for a gap in the z-bots and move quickly there. Wait until the spikes in the key square drop down, collect the key, move right again and wait for the z-bots to exit.