I am going to come off as a prick right now only because I can just say that Google is your friend. Just type in on search: 2006 Cobalt and then the code and it should self explain.
But, since I am a nice guy here is what they are:
P0069: is reduced power mode.
P0102: is a MAF or mass air flow sensor code
P0121: is throttle position sensor
P1101: again is a MAF sensor code being 'out of frequency'
P0068:is another reduced power mode
P2228: is a BARO sensor code Barometric pressure sensor code
P0096: is an air intake sensor code
So what would be the best thing to do is to replace the MAF sensor, throttle position sensor and get the ECU diagnostic codes erased so that it gets out of limp mode. And if that doesn't work, time to go to the dealer.