First Sonic The Hedgehog 4 Screens

[darkriku2000]

1st episode: just sonic
2nd: Tails added
3rd: Knuckles added
4th: Amy added

And it's all downhill from there

[fpcreator2000]

They better show up, along with classic mecha sonic and egg robo damn it!

[Gene]

I just hope it's true to it's origins. Not the more recent garbage they have started adding in.

Sonic was always one of those games you could easily pick up, and play for 20 minutes, or for 3 hours.

[VampDude]

1st episode: just sonic
2nd: Tails added
3rd: Knuckles added
4th: Amy added

And it's all downhill from there

Sounds like the original series.

Sonic the Hedgehog - Sonic
Sonic the Hedgehog 2 - Sonic & Tails
Sonic 3 - Sonic & Tails
Sonic 3.2 (Sonic & Knuckles) Sonic and Knuckles, Tails if completed Sonic 3.

Amy never made it to the original series, except for Sonic CD where the character isn't playable.