Tough Guy Alert! YTPMV Mashup

I only knew three other YTPMVs of this for the longest time, so I figured making one of my own would make for a mashup that fills the entire screen in a 2x2 grid. Little did I know there were way more of them...
A compilation of "They're Pretty Tough, Should We Be Careful?" AKA "Tough Guy Alert!" YTPMVs that have all been painstakingly edited to be synchronized.

BGM:
Mario & Luigi: Bowser's Inside Story - They're Pretty Tough, Should We Be Careful?
   • Видео  

Original Videos:
"Cuidado ai fera" by dejota:
   • Cuidado ai fera  

"Cookie☆ Inside Story - They're Pretty Tough, Should We Be Careful?" by Lievre_Cafe / りえ〜ぶる:
   • Cookie☆ Inside Story - They're Pretty...  

"Should We Be School Idols!?" by TheKingOFKings and ToopoftheHill:
   • Should We be School Idols!?  

"Cuidado com a Sogga" by kmy ケミー:
   • Cuidado com a Sogga  

"Tough me baby" by beoh:
   • Tough me baby  

"They're Pretty Tough, Should We Be +Wary?" by AlterReaper (AKA me lol):
   • They're Pretty Tough, Should We Be +W...  

"[YTPMV] Should We Be Credit To Team?" by The Wazzz:
   • [YTPMV] Should We Be Credit To Team?  

"[YTPMV] Alerta de enemigo ligeramente forzudo" by Quackyrole:
   • [YTPMV] Alerta de enemigo ligeramente...  

"[YTPMV] Konata's Inside Story" by starrod:
   • [YTPMV] Konata's Inside Story  

"Tough Spice Alert!" by lyeaf:
   • Видео  

"Soccer: Gordon and Waffle: Blik's Inside Story" by Quarma:
   • Soccer: Gordon and Waffle: Blik's Ins...