Psycho Waluigi ('P?' for short) is a 2D side-scrolling indie game starring Waluigi. Waluigi first appeared in the 2000's Mario Tennis, as Wario's partner, another plumber with taller and thinner figure than Luigi. Predictably, he has the same nature of doing all kinds of bad things as Wario. This game was released in 2011 by Thunder Dragon from MFGG and has won numerous NCFC/MFGG awards.

Toad Strikes Back (TSB for short) is an extremely excellent and successful fan-made small free game series with very high playability like big-budget productions. It was created by Thunder Dragon for fun and first released to public at MFGG (Mario Fan Games Galaxy) in 2007. Its followed sequel in 7 years later is Toadette Strikes!.