SRB2 Persona

Frantic turn based battles
Experience the flashy aesthetic of the Persona battle system, with a hint of Shin Megami Tensei buff system topping to add some flavour, alongside literally hundreds of available Persona skills and a varied selection of characters!
Find out and exploit your enemies' weaknesses to knock them down and get additional turns! Manage to knock them all down, and you can unleash the powerful All-Out Attack to deal massive damage and maybe just end the battle in a flash!
If you either finish a battle with an All-Out Attack, or within a single turn, you may even get a chance to get some more mileage out of it!

Dungeon crawling with up to 4... 8...? wait, 16 players!?
Crawl within the mazes of Tartarus. Ambush the Shadows impeding your way, earn EXP to get stronger and make your way up to and destroy the floor guardians with a party of 4... Or up to 4 parties of 4 in any given Block of Tartarus!
...Just be careful not to spend too much time on a single floor, or bad luck awaits...

Roguelike!
Is regular Tartarus exploration too easy for you? The enemies are too predictable? Try your luck in Rogue mode! Enemies will have randomized affinities and attacks to go along to force you to re-experience the thrill of finding weaknesses out on the spot whenever you want!

A climb to the top!
In Marathon Mode, you can climb Tartarus from the bottom to the very top with save point at each boss floor! This mode locks you in Rogue mode for an added difficulty. Will you find what awaits you at the top?

From Nothing:
Want a refresher? Try Void Run! A difficult alternative take on the usual gameplay loop, you'll start from nothing and have to work your way up to fighting enemies much stronger than you are using items and equipment wisely... Every character starts off the same, you're free to build them however you like!

Fight it out in a 4V4 PvP duke out!
Experience the many intricacies of how stupidly unbalanced the battle system is by unleashing your most devious strategies on each other!
You can also try some of the funky alternative variants of PvP, such as Random Skills or Boss Mode... Both of which are exactly what they sound like, it's not like this mode was balanced anyway, so let's go All-Out with the silliness!

Test your skills on Challenge Battles!
Take on timed boss rematches and endless battles with up to 3 other players to set the best times and scores! Serves as a good training session to know what to expect from the many dangers of Tartarus! You may even get compensation for your suffering if you win em all!