A little guide:
You can use special skills pressing I and the different arrow keys (down key + I is the most powerful move)
You can transform by pressing J + K when you have full energy (The special skills change too)
If you want to play the newest version you can go to their site http://www.5dplay.net/ (it's japanese but you can translate most automatically with google translator), in the newest version there are Ulquiorra - Chad and some new characters to play.
This game can be heavily improved but i loved it :)... The best weapon for me was a fully upgraded laser gun , that's the only thing that made me nearly beat the last level. Having such a challenging level made me give the best and i nearly managed to kill the last boss for what i think was the last one of his lives ( because he restore his health and become stronger every time u take him down to 15000 hps ), made him become a flaming guy but then couldn't dodge all those attacks anymore and he got me. i'll surely try again because this game made me an addict and i love it :D
@DavidB111 It's true that store items are alot weaker than items you can forge blacksmithing but it's also true that in the last dungeons you can find weapons with 6d12 dmg, that makes blacksmithing just a waste of time in the end because alchemist potions can increase the number of dices in a weapon... that means increasing 1-12 dmg for each pot instead of 1-6.
I think you should decrease the level needed to start new missions because i just arrived at Team 11 and it says "come back at lvl 50" but im lvl 35 and it takes hours of farming to lvl up 15 times now :(.