Just like you, we enjoy playing Brain Test 4 game. If you don’t want to challenge yourself or just tired of trying over, our website will give you Brain Test 4 Level 210 answers and everything else you need, like cheats, tips, some useful information and complete walkthroughs. The team that named Unico Studio, which has developed a lot of great other games and add this game to the Google Play and Apple stores.
You can never turn them all on with the 4th one. Tap on the 4th one's cable to break it.