1) Black Rock Shooter x Chuuni. Basically something of a parody RP. Might throw in some Persona in there, but BRS alone more than covers the general range of shared plot elements and conventions (coughsociallinkscough).
2) "Naraku no Hana" (aka "Flower of Hell", for the less weeaboo). A GARO/Karas-inspired RP where players take on the job of hunting down Horrors. You can be the arcane Priest, armed w/ a host of magical items and spells, which is actually cooler than it sounds; alternatively, you can be a titled Knight, the big guns of Makai Society, armed w/ a weapon of choice, a magic lighter and the ability to summon Madou Armor for 100 seconds that puts you at Crinos Werewolf-tier.
tl;dr You're gonna reeeaaaaally mess up somebody's day in your armor.
Uhhhhhh, we'd either go w/ contemporary urban fantasy like the canon seasons of GARO (pending word on the new 2014 season or the announced anime), or we could up the Karas influences to Kikokugai levels and move into some cyberpunk proper. Gameplay focuses a lot on identifying and tracking a Horror before you can do anything about it; think grimdark Bakemonogatari w/ its Oddities, kinda. Vampire!Araragi is basically a Knight, Oshino is basically a Priest, blah blah, you get the idea.
Also, out-of-armor combat for the Knights is a biiiiig thing; there's a very good reason for the time limit, so don't expect to go "IT'S MORPHIN' TIME" and go the distance w/ just that. Your henshin is your trump card; don't forget that.