Just got a Sega Genesis

[Mr.White555]

I second getting the genesis 6 pak, Contra Hard Corps, and Ranger X.
Pretty much all the best games you need to have people already said but I'll go a head and say you should pick up Atomic Runner and Road Rash II.

[Assman]

I lament the day my 6-Pak cartridge disappeared and left a hole in my heart that has yet to be filled.

[AznKhmerBoi]

shinobi games, phantasy star, truxton,

[Snatch1414]

A couple notes for those thinking about a Sega CD:

Earthworm Jim for Sega CD is the best incarnation IMO (better sound).

Eternal Champions for Sega CD is so good and so underrated it's not even funny. One of the best 2D fighters ever in my opinion.

[the King]

Lots of good games already mentioned. Check out Home Alone. Yes really, that Home Alone, based off the movie. It's cheap and pretty fun. You can always search for gameplay of any of these titles anyone suggested on youtube and see if they are up your alley. Of course you waste can a good evening doing so(like I have), but it's helped me make some purchases and avoid others I knew weren't for me.

[emwearz]

Get the 6-PAK, it's a real money saver. You'll get Sonic (1), Golden Axe, Streets of Rage (1), Revenge of Shinobi, Columns, and Super Hang On. The price for this one cart will be WAY less than what you'll pay for all six of these games individually.

This was the first cart I got, its well worth it (Though I got the shit one with Soccer in place of Sonic) in the future you can collect up the versions of the games, but to get you started, greatest cart.

[Hobie-wan]

Head here to read some reviews. It will depend on the type of games you're into.

http://www.sega-16.com/

[Kenshiro28]

Earthworm Jim for Sega CD is the best incarnation IMO (better sound).

How is it compared to the PC version they have on GOG?