Uploaded September 2015 | Updated September 2026, 2 weeks ago

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So it turns out that, with a Lakitu alone, it's possible to spawn a Reznor and finish a level!
First off, you need to stun the Lakitu. It spawns a horizontal fish, that usually isn't very useful in a level without water. The trick is: spawn the fish in the last frame of Lakitu's stun timer, so that the fish is spawned moving really quickly, and it takes the slot that used to be from the cloud!
Lakitu stores the slot of his cloud, so that when you jump on it, he tells the cloud to evaporate as well. This evaporation changes the cloud stun timer. Since now the fish is in the cloud's slot, jumping on the Lakitu will change the fish's stun timer instead! So, just keep the stunned Lakitu somewhere, stun the fish, and then immediately smash the Lakitu. This is enough to the fish to spawn a Reznor, which can be killed thanks to Yoshi's tongue addresses!
Ah, and another useful thing found by Swichpalacecorner. If the cloud never gets to spawn, and the Lakitu spawns without it, jumping on it will change the stun timer of whatever sprite is on slot 0.