How to get the "Nonexistence" tag in Find The Chomiks!

Timestamps: 0:12 Button 1 0:28 Button 2 0:48 Button 3 1:11 Uber trollge secret area?!?! 1:24 Blocky button 1:33 Desert button 1:58 Ice button 2:14 Kitchen button 2:38 Marble button 2:54 Spawn button 3:05 Trash button 3:20 Getting back to the chocolate room and finding a new path behind it?!?! 3:42 The "Nonexistence" tag Tags (ignore): #ftc #findthechomiks #roblox