Or you could just put in some cheats you can find on gamewinners.
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Ok this probably comes too late, but here goes:

Beat the game with another character. Get Officer Dick. Beat the game with Officer Dick. That will "legally" get you Moon Physics. With Moon Physics you can easily get the cash by jumping from a grind on the nearby rails.

I'm afraid this is the only way you can "legally" 100% the level.
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I've got another tip. If you've got 100% in everything else then you must have alot of cash. Have you tried buying stats. like ollie and speed or anything that will help to get it. maybe if you jump of the planter, with enough stats, I'd say you could get it.
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Hey It's me again I have another tip. Have you tried grinding the back rail of the that building were the electric line and poles are? If not try to get alot of speed and grind it and ollie right at the end. I've been playing mine to see if I could get it. It does seem impossible! I'll keep you updated when I get it or find an easier way. Have you tried to get all the gaps? I'm stuck on quite alot if you can help let me know. I've never heard that if you do stuff with cheats it cheats you on unlockables. I've beat it before and got the same thing everyone else has. I just accidentally deleted it! Just for curiosity what is your last name. I know a person at school named andy, and he has a N64 and Playstation. Sorry! this is kinda long.
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Hey andy if your so mad about not being able to get it I'll give you a code that makes you jump really high it's called double moon physics just get right under it and jump so heres the code- C-Down, C-Left, C-Right, C-Left, Up, C-Down, Down, Right, C-Down, C-down. If you have this game for platstation then this obviously won't work. Oh yeah the screen will shake to confirm correct code entry
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