are there any free game apps for ipod touch 2.2.1
Probably very few if any. You should at least get your iPod touch to iOS 3.1.3, the final version a first-gen iPod touch can run if that's what you have. Then there will be at least a few games you can still run. For upgrading to iOS 3.1.3, see:
Purchasing iOS 3.1 Software Update for iPod touch (1st generation)
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