I hope this is the right section, it's the first time I make a new topic and I'm terrified
I tried searching and nothing showed up, so I guess a thread about flash games doesn't exist yet (if it does I humbly apologize).
Websites like Kongregate and Armor Games host thousands of flash games. Many of them are just little time killers, and other are just plain bad; however, I believe there are some hidden gems among them. So here you can share any hidden gem you found. I'll start:
The name is Epic Battle Fantasy (EBF for short). It's a turn-based RPG, similar to Final Fantsy (I haven't played it so I can't tell for sure). From a simple sequence of enemies the game evolved to a full-fledged series, including 4 main games (5th in the making) and several spin-off: 2 bullet-hells, one side-scrolling, two dress-ups and an app for Androis/iOs.
Strong points: funny plot, funny and well-characterized characters (pun not intended), easy sidequests (just handing stuff to people), amazing music (tied with Pokemon, both official tracks and remixes), diverse types of enemies (tricky, cool, cute), difficulty levels from easy to epic, heavy Dragon Ball and Pokemon references. It also has a wiki if you need information or help.
Weak points: the first two games are really simple, you may have to walk a lot, you need to buy the premium version to enter the postgame area in EBF4 and Bullet Heaven 2.
Since I'm afraid of guideline #6, I'll put the rest in a spoiler (and remove it if I have to):