Upgrading/Caniser Locator question

[Tyger7]

So I bought the 50% thing off after two levels. I have not spent almost anything yet and I am 5 levels from completing the game. in 2 levels i will buy the canister locator...will i be able to get all the upgrades without playing those levels 3 times? Like will i have enough after the canistor to just play through the game twice? I realize i need them all updated to use the canistor locator effectively! OUCH

[PerpetualHeaven]

I personally upgraded all my skills first because that way when I went through I could get most of them and hopefully get all of them in a level that way I didn't have ot play through each and every single level again.