I never had any problems with gun points. My final tank only used 9 points and I have no problems beating every arena I want with it. (Exploding Pierce + Leech Cannon)
as for suggestions: right now there's mainly one thing bothering me: mana potions. I can't buy them and when I use them in boss and lose they are gone. Of course I can save before starting boss and go back to the save point when I lose, but I found out that this is not possible without restarting the game.
So my suggestions are A: let me buy mana potions and B: let me load old save points without restarting the game.
That Dargon King is crazy.. debuff and almost kill whole party, then when I kinda caught up with life and buffs again he just puts them all to sleep. And while they sleep he kills them one by one.
And then, when you think you finally got him, boom: a THIRD form, even more annoying!
I'm not sure how to beat him yet.. The rise in difficulty from Rita to this is amazingly high.
fun fact: combos over 1000 are not displayed properly. The last digit is cut off.
It's pretty easy to reach those combos with mathnerd314's strategy. (bigger wings, shorter worm, sleek spikes, blood fangs, flame jets, shredder teeth and mega vacuum, but I never used vacuum)
Ok, some critique:
Why does it say "space to skip" when I still have to read conversation after it? Can't you make everything skipable?
And that damage-chain-broken message could use a lot more subtlety. Totally interrupts the gameplay and gets annoying as hell after a while.
Good game, could use some updates. 4/5
Why is the surrender button exactly where the stop button is? I accidentally surrendered when i wanted to stop because right at this moment I was attacked. Lost half my cargo, which meant half my gold. Frustrating.
But apart from that a nice game. Gets a bit repetitive after a while. 4/5
nice game, but it could use a bit more variety. For example there's only two kinds of weapons and roughly 4 kinds of enemies. The end boss was challenging. 4/5
Normally I like this kind of games. But I'm afraight I have to say that this one didn't catch my attention, at least not enough to read all these dialogues. I just made it to the mountain peak, then I lost interest in reading all this stuff and now I'm in the town with no idea what to do. And that's the end for me.
 "Bubble Tanks Arenas"){kind=icon}
 "ELEPHANT RAVE"){kind=icon}
 "Balance Balls 2"){kind=icon}
 "Crystal Story II"){kind=icon}
 "Effing Worms 2"){kind=icon}
 "Cube Colossus"){kind=icon}
 "Creeper World: Evermore"){kind=icon}
 "Papa's Cupcakeria"){kind=icon}
 "One Step Back"){kind=icon}
 "Frontier"){kind=icon}
 "The Peacekeeper"){kind=icon}
 "The Last Door - Chapter 1: The Letter"){kind=icon}
 "Questopia"){kind=icon}
 "Accelerator"){kind=icon}
 "... :D"){kind=icon}
 "Parachute Retrospect"){kind=icon}
 "Magnetized"){kind=icon}
 "The Grey Rainbow"){kind=icon}