Comet, which is owned by the same group that saved GAME from bankruptcy, has recently slipped into administration.
Despite the link to GAME, the retailer has enough money to trade through Christmas, and is in a position to earn £20 million by the end of the financial year.
"I have all the cash I need to trade through peak [period]," Gibbs told The Sunday Telegraph.
"There has been nothing that I tabled that I didn't get investment for. I can't ask for more," he added.
Despite having to pay OpCapita millions in interest repayments, the financial restraints are "not at all" impeding the business, despite the lack of credit insurance.
"I would rather we had it, but have managed without it," Gibbs explained, referring to the firm's lack of credit insurance.
"We will hopefully achieve it sometime in the future. But, we have never factored it in."
GAME has been bolstered by recent releases such as FIFA 13, Assassin's Creed 3 and Halo 4.
It also has plans to open up countless stores for tonight's Black Ops 2 launch.
Announced last month, the firm will also benefit from the recent refitting of 122 Gamestation stores into the GAME brand.
The move has seen the company adopt the best of both brands, with the broad range of games that GAME offers and the community and knowledge Gamestation is well known for.
It has also introduced new schemes and in-store offers, and merged all existing reward cards with the aid of a mobile app.
Images: View GAME's midnight launch for FIFA 13:
Copyright: PA Images Scott Heppell