Enough Plumbers is an expansion on Glen Forrester's original Enough Marios. The plumber's goal is to grab the flag on each of the 25 levels, but there's a twist - grabbing coins will create a Mario clone who then becomes user-controlled.

Initially the concept acts as a distraction, turning what is essentially simple platforming into a bit of a nightmare, with plumbers spawning and jumping all over the place. As long as one Mario reaches the flag, the level is complete.

Later on, the game becomes more puzzle-based. Plumbers need to be spawned and moved into certain positions, maybe to press a button at a particular moment, or to collectively weight down a pad. There's some seriously clever level design to be found in the later levels, so it's worth plugging your way through the more hectic first few.

Give it a try over at NotDoppler.