Evolution of Final Bosses in Mega Man games (1987-2018)

Yes. The whole franchise.

Timestamps:
0:00 - Mega Man (NES, 1987)
- Wily Machine 1 (2 phases)

1:23 - Mega Man 2 (NES, 1989)
- Alien

3:04 - Mega Man 3 (NES, 1990)
- Gamma (2 phases)

3:52 - Mega Man: Dr Wily's Revenge (GB, 1991)
- Wily Machine World 1 (2 phases)

5:05 - Mega Man II (GB, 1992)
- Wily Machine World 2 (3 phases)

6:45 - Mega Man III (GB, 1992)
- Wily Machine World 3 (2 phases)

9:38 - Mega Man 4 (NES, 1991)
- Wily Capsule

10:42 - Mega Man 5 (NES, 1992)
- Wily Machine 5 / Wily Capsule

13:33 - Mega Man IV (GB, 1993)
- Wily Robo Iron Golem (2 phases) / Wily Capsule

18:00 - Mega Man X (SNES, 1993)
- Velguarder / Sigma / Wolf Sigma

22:10 - Mega Man 6 (NES, 1993)
- Wily Machine 6 (2 phases) / Wily Capsule

23:19 - Mega Man V (GB, 1994)
- Sunstar

26:37 - Mega Man X2 (SNES, 1994)
- Neo Sigma / Sigma Virus

30:50 - Mega Man: The Wily Wars (MD, 1994)
- Wily Machine (2 phases) / Wily Capsule

33:02 - Mega Man (GG, 1994)
- Wily Capsule

34:48 - Mega Man 7 (SNES, 1995)
- Wily Machine 7 / Wily Capsule

40:00 - Mega Man: The Power Battle (Arcade, 1995)
- Wily Machine (2 phases) / Wily Capsule

41:42 - Mega Man X3 (SNES Ver., 1995)
- Sigma / Kaiser Sigma / Sigma Virus

47:54 - Mega Man 2: The Power Fighters (Arcade, 1996)
- Wily Machine / Wily Capsule

49:49 - Mega Man 8 (PS1/SS, 1996-97)
- Wily Machine 8 / Wily Capsule

54:22 - Mega Man X4 (PS1/SS, 1997)
- Reaper Sigma (2 phases) / Sigma Gunner and Earth Sigma

1:01:06 - Mega Man Legends (PS1, 1997/N64, 2000)
- MegaMan Juno (2 phases)

1:09:58 - Mega Man & Bass (SNES, 1998/GBA, 2002)
- Wily Machine 8 / Wily Capsule

1:12:00 - The Misadventures of Tron Bonne (PS1, 1999)
- The Colossus (2 phases)

1:17:48 - Mega Man Legends 2 (PS1, 2000)
- Sera (2 phases)

1:25:02 - Mega Man Xtreme (GBC, 2000)
- Wolf Sigma

1:26:05 - Mega Man X5 (PS1, 2000)
- Psycho Sigma / Final Sigma W

1:32:48 - Mega Man Battle Network (GBA, 2001)
- Life Virus

1:36:18 - Mega Man Battle Network 2 (GBA, 2001)
- Bass.EXE Copy / Gospel

1:43:35 - Mega Man X6 (PS1, 2001)
- Sigma / Hell Sigma

1:48:28 - Mega Man Xtreme 2 (GBC, 2001)
- Neo Sigma / Beast Sigma (?)

1:51:25 - Mega Man Zero (GBA, 2002)
- Copy X (2 phases)

1:55:14 - Mega Man Battle Network 3 (GBA, 2002-03)
- Bass.EXE / Alpha

2:03:40 - Mega Man Network Transmission (GCN, 2003)
- Life Virus R (2 phases)

2:07:29 - Mega Man Zero 2 (GBA, 2003)
- Elpizo (2 phases)

2:11:56 - Mega Man X7 (PS2, 2003)
- Sigma (2 phases)

2:21:30 - Mega Man Battle Network 4 (Red Sun) (GBA, 2003)
- Dark MegaMan.EXE / Duo.EXE

2:27:33 - Mega Man Zero 3 (GBA, 2003)
- Omega (2 phases) / Omega Zero

2:34:29 - Mega Man X: Command Mission (GCN/PS2, 2004)
- Great Redips

2:47:38 - Mega Man X8 (PS2, 2004-05)
- Sigma / Lumine (2 phases)

3:01:28 - Mega Man Battle Network 5 (Team Colonel) (GBA, 2004/NDS, 2005)
- Nebula Gray

3:09:40 - Mega Man Zero 4 (GBA, 2005)
- Dr. Weil (2 phases)

3:16:52 - Mega Man Battle Network 6 (GBA, 2005)
- Falzar
- Gregar

3:26:45 - Mega Man Maverick Hunter X (PSP, 2006)
- Velguarder / Sigma / Wolf Sigma
- X and Zero

3:33:45 - Mega Man Powered Up (PSP, 2006)
- Wily Machine 1 (2 phases)

3:37:35 - Mega Man ZX (NDS, 2006)
- Serpent (2 phases)

3:45:54 - Mega Man Star Force (Leo) (NDS, 2006-07)
- Andromeda (2 forms)

3:54:47 - Mega Man ZX Advent (NDS, 2007)
- Master Albert (2 phases)

4:04:43 - Mega Man Star Force 2 (Ninja) (NDS, 2007-08)
- Le Mu (2 forms)

4:12:24 - Mega Man 9 (XB360/PS3/WII, 2008)
- Wily Machine 9 (2 phases) / Wily Capsule

4:15:37 - Mega Man Star Force 3 (Black Ace) (NDS, 2008-09)
- Crimson Dragon (2 phases)

4:27:39 - Mega Man 10 (XB360/PS3/WII, 2010)
- Wily Capsule

4:29:00 - Mega Man 11 (XBONE/PS4/NS, 2018)
- Wily Machine 11 / Wily Capsule
All footage is mine. Can't say the same for the saves though:
Xtreme 2 save: Rey on Zophar's Domain
MM8 save: GeorgeGX64 on GameFaqs
Legends 2 save: Eevee-Trainer on GameFaqs
Battle Network 6 Gregar Save: Samurai Edge on GameFaqs

Видео Evolution of Final Bosses in Mega Man games (1987-2018) канала MattN2002