You do not push any buttons! Once you collect the seven chaos emeralds with Team Sonic, you unlock the 'Last' Team. In this story, you discover that Metal Sonic has copied all four of the Teams' special abilities and used them to become a giant metal monster, Metal Madness! Using Teams Rose, Chaotix, and Dark (in that order) you weaken Metal Madness to a point where he transforms yet again, this time into a flying version of himself, Metal Overlord.
Sonic Robo Blast 2 is a 3D open-source Sonic the Hedgehog fangame built using a modified version of the Doom Legacy port of Doom. SRB2 is closely inspired by the original Sonic games from the Sega Genesis, and attempts to recreate the design in 3D.
This is where you take control of Team Sonic and, using the power of the seven chaos emerlads, Sonic turns into Super Sonic and super charges Tails and Knuckles! I don't want to spoil anything for people who haven't beaten the game yet so I won't tell you what happens after that. If, however, you are asking if you can become Super Sonic in a regular action stage, (for example Ocean Palace) no you cannot. You can find a complete walkthrough on the 'Last' story by simply searching for 'Sonic Heroes' on Wikipedia, then using one of the links they give you. You download Sonic Robo Blast 2 version 1.0.9.4a. Then you download Sonic Robo Blast 2 JTE version 1.69.10.
You with also need the shadow wad, you can get this from the SRB2.org website. OR you could get the HyperMysteriousShadonic123311 wad, which is harder to find. Now you run srb2jte.exe wi th -file whichever one you download.
Start- Run then type in 'c: games srb2 srb2jte.exe -file hms123311.wad' Now you start a game as the player you downloaded. If you got shadow you will have to find all the chaos emeralds first. Don't know what I'm talking about? Contact me on the SRB2 Forums (SRB21103).