Gundam Breaker 3

You have to have a moderate amount of GP, at least 2 types of plastics with a minimum of 2 pieces for at least 1 type and some ability cubes to make use of the entirety of this glitch. Enter plastic merge mode.

To get max amount of plastics:
- Keep at least 2 pieces of the plastic which you do not wish to duplicate for now; sell all but 1 piece of the plastic for which you wish to get the maximum amount.
- Note the upgrade cost of the 1 piece of plastic.
- Pretend to sell your current whole amount of the plastic of which you have multiple pieces; press cancel in the confirmation page.
- Note the upgrade cost of the 1 piece of plastic again which should be higher than before; if not, retry until it is.
- Perform a merge with that 1 piece of plastic
- After the merge you would have the maximum amount of 9999 pieces of it.

To get max amount of ability cube upgrade:
- Pretend to sell 9999 pieces of any type of plastic; press cancel in the confirmation page.
- Upgrade with a cube; it would show the maximum amount of upgrade in orange numbers if successful.

To get max amount of GP:
- Pretend to sell 9999 pieces of any type of plastic; press cancel in the confirmation page.
- Proceed to sell an ability cube; it would show 29997000 GP as the revenue if successful.
- Repeat as you wish until you have the maximum amount of 99999999 GP.