G:Chase H.Q. 2 (J) 

C:Start With 6 Turbos|A3DA-AADA|electric_jimi|
C:Infinite Time|XERT-DXBW|electric_jimi|With the 'Infinite Time' code, it starts the timer at 99 seconds and counts down to 0, then back to 99, and just keeps doing this. I let the game run for a good 10 minutes or so just to see. It will give you MORE than enough time anyways to complete missions.