7.94 avg 7 episodes 7.5 → 7.7 18 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Ultimate Robot Battle vs Dude Perfect | 7.5 | 13 |
| 2 | Beating 5 Scam Arcade Games | 7.8 | 12 |
| 3 | World's Largest Jello Pool | 7.8 | 12 |
| 4 | Octopus vs Underwater Maze | 8.6 | 19 |
| 5 | World's Tallest Elephant Toothpaste | 8.2 | 11 |
| 6 | Egg Drop From Space | 8.0 | 10 |
| 7 | Unbeatable Rock Paper Scissors Robot | 7.7 | 9 |
8.26 avg 7 episodes 7.7 → 8.7 16 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Acid vs. Lava Destruction Test | 7.7 | 9 |
| 2 | Backyard Squirrel Obstacle Course | 8.2 | 10 |
| 3 | World's Largest Devil's Toothpaste | 8.0 | 8 |
| 4 | Beating Carnival Scams with Science | 8.3 | 7 |
| 5 | My Domino Robot Broke a World Record | 8.3 | 7 |
| 6 | Engineers vs. Extreme Hide & Seek | 8.6 | 7 |
| 7 | My Experience Building the Mars Rover | 8.7 | 6 |
8.04 avg 9 episodes 8.8 → 7.8
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Lava vs Laser Destruction Test | 8.8 | 10 |
| 2 | Backyard Squirrel 2.0 - Bank Heist | 8.6 | 8 |
| 3 | Building a Liquid Sand Hot Tub | 8.0 | 8 |
| 4 | This Ball Is Impossible to Hit | 8.0 | 7 |
| 5 | Vortex Cannon vs Drone | 7.9 | 7 |
| 6 | Glitter Bomb 1.0 vs Porch Pirates | 7.8 | 6 |
| 7 | Engineers vs Food Robots | 8.0 | 7 |
| 8 | Mark Rober vs Ninja Kidz | 7.5 | 6 |
| 9 | Engineers vs Custom Go Kart Racing | 7.8 | 6 |