first i want a metal gblimp with 50 health wich is smaller than the blue but has a weakness of bombs wich should do double damage but this should resist all not melt metal or explosion attacks.

and a golden gblimp with 15000 hp but moves a bit slowly without any resistances.

There are close representatives, but are only encountered in later waves:

At wave 70, Marble gBalloons spawn. The Marble gBalloon has 60 HP, which pops into a Brick gBalloon with 30 HP, which pops into a Ceramic with 10 HP. In a future update they will only receive 1 damage per hit.

At wave 90, Monochrome gBlimps spawn. The Monochrome gBlimp is immune to non-metal melting attacks and explosives.

At wave 100, the Purple gBlimp spawns. The Purple gBlimp has 20000 HP and has no significant resistances.

how about a new type known as gmech [a giant mech made from gballoons and gblimps]

maybe a DREAD gblimp [A GIANT GBLIMP THATS BLACK WITH A SKULL ON IT.]

and maybe some zombie gballoons and gblimps that when popped come back to life with holes

and then maybe a boss gballoons?

I just don't feel like adding more at the moment. There are already too many gBalloon types to factor in for balancing honestly.

god of all gballoons inf hp can.t be kill and is big zombie gballoons that when popped come back to life with holes

2 ok pls

I think I'll just add two more gBalloons (Glass and Void). Zombie gBalloons basically sound like weaker Shielded gBalloons to me.

how about the ambush gblimp that has 25 hp but when popped drops 10 magenta gblimps

or 5 magenta gblimps and 5 monochrome for the ambush gblimp pop its your choice.

and how about a bomb gballoon that stuns towers upon death because it explodes.

oh ok