Zombie Derby 2

For this achievement, you can make a flip and then die and it will still count towards your total count. Meaning you can grind in a specific spot, then die and you will pop the achievement.

Now, I would highly recommend that you perform backflips while you use nitro rather than front flips. I found that I died during some front flip attempts, and backflips were more reliable. But it's up to personal preference in the end.

Now, here are a few locations where you can flip in the tutorial and level 1:

1. During the tutorial, there is a ramp that launches you over a bomb. It's a perfect flip opportunity. You can see it around [02:03] in the video below.
2. In level 1, when you are able to reach the bird, I do think that you can perform a backflip. I have never successfully flipped here myself, so it is just a theory, but to me it looks like you have a good opportunity here. You can see me fail at [06:43] in the video below.
3. Finally, during level 1, there is a red bridge you cross which has a ramp right after it. When you jump off the ramp, you can perform a backflip pretty reliably here. See this area around [07:24] in the video below.

Here is a 100% achievement walkthrough for those that may be interested:
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