Install Steam						
					
				
				
									login
											 | 
						language
						
																																					简体中文 (Simplified Chinese)
																													繁體中文 (Traditional Chinese)
																													日本語 (Japanese)
																													한국어 (Korean)
																													ไทย (Thai)
																													Български (Bulgarian)
																													Čeština (Czech)
																													Dansk (Danish)
																													Deutsch (German)
																																							Español - España (Spanish - Spain)
																													Español - Latinoamérica (Spanish - Latin America)
																													Ελληνικά (Greek)
																													Français (French)
																													Italiano (Italian)
																													Bahasa Indonesia (Indonesian)
																													Magyar (Hungarian)
																													Nederlands (Dutch)
																													Norsk (Norwegian)
																													Polski (Polish)
																													Português (Portuguese - Portugal)
																													Português - Brasil (Portuguese - Brazil)
																													Română (Romanian)
																													Русский (Russian)
																													Suomi (Finnish)
																													Svenska (Swedish)
																													Türkçe (Turkish)
																													Tiếng Việt (Vietnamese)
																													Українська (Ukrainian)
																									Report a translation problem
							
						
 
											 
													







As for the timer, good point. The reason I used one, was to see if that was helping me solving the max world portal doors problem that I was having, but I didn't see a reason to remove it.
Also, I strongly recommend against timers for the tunnels, especially the tunnel's exit because you could get trapped if you're still inside when time runs out. (Plus I can't figure out why there's a timer in this level in the 1st place).
I guess old habits die hard!
Its funny though because in your solution, you don't need at all paint the 2 tiles at the end of the accelleration tunnel.
My first playthrough I died about 3 times.