Splinter Cell 3 Cheats

Get 100% completion for a profile

Go to the profile screen, hold Right + 0, then select a profile by pressing 5. Everything for that profile will be unlocked, and you will get 100% completion for it.

SonicN Cheats

Unlock Moon Zone

Beat the game with all 7 Chaos emeralds and play Sonics X-Zone. After you defeat him, you will unlock the moon zone.
Fly high:

Play as Sonic (recommended), Miles, or Knuckles. Go to Zone 1 Act 1 and go to the area where the first loop is located. Stand on the sliver of land, then charge a Spin Dash for twenty seconds. Dash to the right and hold Down/Right. You will go down the hill (not getting all the rings). Eventually, you will go so fast that you will leave the screen. Sometimes it does not launch you off the cliff at the end.

Sonic N Cheats

Unlockable: Moon Zone
Beat the game with 7 Chaos emeralds and beat Sonics X-Zone to unlock the moon zone.