1 - Awful - So awful that I wonder how it even got published. Not fun at all. No redeeming qualities. ("this game sucks", "I never want to play this game again", "how did this game ever get made?")
2 - Bad - A typical bad game. Lots of repetition. Could have horrible controls or sound. ("bad", "boring", "annoying")
3 - Average - Your average game. Average challenge, average story, nothing super unique. ("not bad", "pretty good", "I don't regret playing this", "good, but I probably wouldn't play it again")
4 - Good - A good game. Typically a game I'm willing to go back and get 100% on before putting it away for good. Usually has a good story or plot, great mechanics, or a unique spin on things. ("I really like this game", "I want to keep playing", "great", "really good")
5 - Awesome - Amazing game. Games in this category are typically my favorite games that I will be more than happy to play over and over again. ("amazing", "awesome", "I will definitely be playing this again!")