Toaru Kagaku no Railgun: Motto Marutto Railgun

Like Index-tan and Shana-tan, this omake has nothing to do with the storyline and simply a way... for the studio to get creative I guess? What goes on in these two episode is crazily random and the characters talk as if they're on high. Of course, most of what they're talking about have reference to the main storyline so you'll still "get it". The way they poke fun the certain character's particular traits is also pretty funny.

I'll say it's worth taking a look if you don't mind watching the little extras that always comes with the DVD/Blu-rays.

Just like in Toaru Majutsu no Index, yet again the specials are far more enjoyable than the original series xD

These specials have a crap ton of references to not only the special portions of the series and parodies them but also drags other anime into the mix as well.
And it doesn't stop there, they even drag the voice actors into it.

In terms of comedy and a job well done, these specials are far superior than the original. Kuroneko yet again remains my favorite character in this, and at this point, as a serious character, Accelerator is by far my favorite and I can't wait to ... see if they release a Toaru Kagaku no Accelerator.

rated the original series 7/10, but the specials are a 9/10.