Most extreme find the button map

So i have created a 'fine the button map' with only 5 stages. 
First 4 stages are pretty easy but the last one is an adventure in an abandoned prison where you have to find your way out of the prison look for the hidden levers and buttons and defeat the monsters that await;  
at the end you can reach your final button and win, but beware there's lots of secrets around! 

Screenshots: http://www.mediafire.com/download/ta0ii8...nshots.rar

The Map : http://www.mediafire.com/download/99ixpo...button.rar

This map should be played in 1.8 otherwise it might have errors and the recommended texture pack for this map is: 'Realistic Adventure v5.4' This brings more depth to the map and makes it look much better
Please notify me of any errors and improvements that can be done to the map.

Please download the 1.8 version of this texture pack: http://resourcepack.net/realistic-advent...urce-pack/ 

As the created i do not have a high knowledge of command blocks but i did my best and created a fully working map with different commands. 

I hope you enjoy!