I tried playing Super Smash Brothers while coming up on acid...It was fun for the first 30-40 giggly minutes with no visuals, but then when I started seeing everything warp and distort, it got to be too much for me to handle. I ended up just putting the controller down and staring at the background of the level. It was funny though, when the round was over and it went into the little winner's announcement thing, everyone's nose (Mario, Link, Captain Falcon, and I think Yoshi) kept getting bigger and bigger and all I could do was grin. We eventually turned it off because it got far too intense for the people who were tripping (3 people tripping, 1 sober)