The evolution of Metal Sonic battles in Sonic the Hedgehog games.

00:00 Sonic the Hedgehog 2 Master System (1992)
00:41 Sonic the Hedgehog 2 (1992)
1:35 Sonic the Hedgehog CD (1993)
2:52 Sonic the Hedgehog 3 (1994)
4:43 Sonic the Hedgehog Triple Trouble (1994)
6:09 Knuckles Chaotix (1995)
11:13 Sonic the Hedgehog Pocket Adventure (1999)
12:16 Sonic Heroes (2003)
27:56 Sonic Generations (2011)
29:49 Sonic the Hedgehog 4: Episode II (2012)
36:09 Sonic Forces (2017)
38:52 Sonic Mania Plus (2018)