The highly popular content group, Sidemen, had a big collaboration lined up for their Sunday special video this weekend with Jimmy Donaldson, or "MrBeast" in a Takeshi's Castle-like million-dollar challenge that has taken social media by storm.The two YouTube groups are giants in the content creation game, boasting many popular people on their teams such as KSI and Karl Jacobs with the famous YouTuber LazarBeam acting as the referee. The opposing teams were slated to fight for supremacy in a series of physical challenges inspired by the cult classic Japanese game show Takeshi's Castle.MrBeast@MrBeastWe filmed a video with some brand new YouTubers, go show them some support 🏻606811264We filmed a video with some brand new YouTubers, go show them some support 🙌🏻 https://t.co/CT4NJ475RyFans reacted to the MrBeast and Sidemen "entertaining" collaboration in the game show challenge on SundaySocial media was flooded with fans reacting to the collaboration. Despite being mostly positive, a few Sidemen fans did feel that the content was not for them and expressed their displeasure at MrBeast and co. Here are a few Twitter reactions:husnaa 🇵🇸@husnaa__13Sidemen and Mr Beast ate and left no crumbs with this collab11Sidemen and Mr Beast ate and left no crumbs with this collabTokxfyyy@Tokxfy7@MrBeast It was such a banger entertaining video lol@MrBeast It was such a banger entertaining video lol👏😂😂Kendall :)@kendallreno_@MrBeast Karl in this video tho @MrBeast Karl in this video tho 😍😍hannah꩜ 📌met calum!!📌@honksunshinethe mr beast crew vs sidemen video one of the best so far #Sidemensunday1the mr beast crew vs sidemen video 😭😂 one of the best so far #Sidemensunday https://t.co/l4WqLXWSVuPePepandas@PePepandas@MrBeast LMAO1@MrBeast LMAOMaccan@Maccan422@Sidemen A video where u spent over $500.000 and u had Mrbeast in it and it was a 20min video I expected something crazy24@Sidemen A video where u spent over $500.000 and u had Mrbeast in it and it was a 20min video😭 I expected something crazyAryan@Sm00chieW@KSI This felt like a Mr Beast video rather than a Sidemen Sunday. Too childish2@KSI This felt like a Mr Beast video rather than a Sidemen Sunday. Too childishTom Dibble@TomDibbbbthat mr beast x sidemen collab was such a flop it was maximum more sidemen level shouldn't have been main channel what a waste of money #sidemen #mrbeast #sidemensunday11that mr beast x sidemen collab was such a flop it was maximum more sidemen level shouldn't have been main channel what a waste of money #sidemen #mrbeast #sidemensundayHoneycomb Maze, Door Dash, and more fun challenges the teams participated inFor those unaware of the format of Takeshi's castle, it is a series of endurance-based physical challenges where the participants are made to go through some very tough and sometimes painful competitions to prove their worth. The original game show became popular worldwide, giving rise to an entirely new genre of entertainment with shows such as American Ninja Warrior and Hole in the Wall.MrBeast had already appeared in the famous Sidemen charity match last month so this was technically not their first collaboration on YouTube and fans loved it for the most part. The set design consisting of many different obstacle courses was definitely reminiscent of the elaborate sets the American creator is known for and not typical of Sidemen Sundays.Some fans did express their discontent at the change in video length.ijustworkoverhere@ijustworkoverh1So so disappointed that the sidemen X MrBeast collab that they have been promoting for a week is only 25 minutes long #sidemen @Sidemen @joinsideplus4So so disappointed that the sidemen X MrBeast collab that they have been promoting for a week is only 25 minutes long 💔 #sidemen @Sidemen @joinsideplusmrbigkyle@mrbigkyleWell the @Sidemen @MrBeast was great but shame it was only 25 minutes, an hour would have been amazing! #mrbeast #sidemenWell the @Sidemen @MrBeast was great but shame it was only 25 minutes, an hour would have been amazing! #mrbeast #sidemenHowever, KSI shared the analytics from the channel which showed that the video had done well above the average number of views the channel gets, so all in all it was a huge success.ksi@KSIBANGER ALERT27139392BANGER ALERT https://t.co/AEvRMmYiDNThe format of the challenge was basically for each team to take turns participating in different tasks. The first challenge was a "Honeycomb Maze" task, where individual players representing their group entered a honeycomb-style maze with the goal of finding the exit the fastest. As expected, certain players started feeling the pressure quite early and fans got their first comic moment when KSI broke down illegal doors to try to escape the maze.dogsquad@sendmethThis is inspired from Takeshi's Castle right? @MrBeast @SidemenThis is inspired from Takeshi's Castle right? @MrBeast @Sidemen https://t.co/fJRqyqcc89The second challenge was "Door Dash," something Fall Guys fans would be very familiar with. The task featured a race course with two participants from each team, who had to reach the finish line by passing through rows of doors. The catch was that three out of the four doors in each row were walls.Scrix@Scrix18Tobi insane touchdown in Mr Beast crew #mrbeast #tobi #sidemen41Tobi insane touchdown in Mr Beast crew #mrbeast #tobi #sidemen https://t.co/pQD3oWAJlyThe next one was a fairly simple bike race but was by far the most comical, as the fully grown men had to ride small tricycles through a race track. As a penultimate challenge, the teams went head-to-head in "Grid-iron," a game where players basically had to catch a ball, bypass four defenders, and score a touchdown.The final deciding round was the "Slip Way," a round where players had to precisely slide on a rail and stop at a designated spot. If they went too far or didn't go far enough, they would inadvertently fall into a tub of cold water.Fans of MrBeast and the Sidemen can see their favorite content creators go head-to-head in the fun-filled endurance-based competition on the official YouTube channel linked above.