Oh! Make your credits song whatever the theme song is for the game your reviewing. And for the mod reviews, you could either make a big episode (Like you said), a mini-series (When you are bored of reviewing full games or hyped about some new mod), or include a small review of each mod for a game with the review of the full game (Ex. While reviewing Half-Life 2, you could put in a mini review about Garry's Mod). You could also do the same thing with small free games.
