alright then
stop asking him to play games then omg i really want to see this happen.
more ideas:
-Blindfolded: you can't see where the next island is, but you all know its in one orthogonal direction from the island, and so you have to work together to find it before time runs out.
-Lightning Strike: Periodically, according to a recurring countdown clock on the start island, a lightning strike will appear and destroy one player-built brick at random.
-Botpath: Goal is not to get to the other island, but to build a path for a bot to cross. The bot, however, does not always walk in a straight line...
-Shark Crossing: Map is flooded with water, so you can swim to the other side, but sharks spawn, and you need to build a barricade/isolated tank to protect yourself as you go across. To prevent simple bridge building, a zone just above the water surface pushes you back towards the start island, so you must swim underwater until you resurface in the end island's well or "safe zone"
-Wiring: Connect a series of "electric" appliances using "wires" that replicate periodic relays from a charger to charge a battery that powers a device that launches you across. For added difficulty, provide one charger and multiple appliances, so people need to split the wire so they can get double the relays for every "charge" sent.