The cheese can get you a max of 5 light over 360, it didn't break the game
English
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Doing the cheese and some strikes in the playlist get you to the same level, but people would rather ruin the game for themselves rather than play it.
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It's not ruining it, it's simply realizing that it's stupid to waste time when you can do something else that's faster. You're legitimately not missing out on any part of the experience.