Hey Arnas, here's my review.
First off, all of the art direction in this game just SCREAMS MapleStory. It's very evident that you played it a lot. All of the characters are in that chibi style and it works sometimes, but not always. The art was kinda repetitive. All the different kinds of turtles comes to mind.
The game play is pretty simple, but fun. I played as Melee + Vertalist, and I noticed the game felt rather easy. Sure, I had to grind a lot (I was level 36 upon completing World 2) but it wasn't too bad until I hit World 3. Then I had to gain 2 levels on every stage if I wanted to compete with the enemies. I like the amount of customization available for Vertalists, but I wish that there were more weapons or armor for the Melee class.
The enemy AI is something that should definitely be improved if you make another game. Seriously, enemies would keep using moves that cured status when they didn't have any type of status on them. Also, a lot of enemies have abilities that drop your MP to zero, and they'd keep using them over and over again. A simple check for whether or not the player as MP > 0 would go a long way here.
I'm really impressed that you figured out how to do something like this in SwishMax, I would've never dreamed this possible a few years ago. I really enjoyed how the armor would change, the weapons would always look different when you purchased new ones; it must have been a lot of work to do, haha. I didn't like that there were no sound effects however. I can forgive the regular attacks for not having sound effects, but the powerful spells really should have had even a small sound.
There's a lot of good here, but it has a few issues that need ironing out. Work on re-balancing characters and improving AI, and you'll have a much better final product. I enjoyed what I played however, and this game is still fun overall. Good Work, and I hope to see some of your old series make a comeback at some point.