It looks like there is a secret passage on race 4 guarded by lasers.Wonders if it leads somewhere.

But how would you get past it? It does not seem possible to jump that high.

back up, get some speed, and you can do it.

OK!

And I thought the laser barrier on race 3 was annoying enough at first.

I don't recall a laser barrier in race 4. If you say there is one, then I would suggest you just ignore it, because there is nothing to find there. It was not meant to be accessed. I've finished this game 100% 6 times and I never went through a laser barrier in race 4.

There is one. I've never really tried to get past it, since like I said it looks too high to jump. Dom1999, did you mean the passage to the slaughterhouses (race 3)?

-- I've finished this game 100% 6 times

Only twice for my part.

It certainally exists, I remember it too. I reckon it was going to have a function, but this was scrapped later on; or perhaps it's just decoration...

Or perhaps its a secret tunnel which leads to something very cool.

Who knows?