Tesla Force

In my opinion, this is one of the tougher (i.e. more luck-based) achievements in the game. You need to have 15 perks active during a single run. This would be really tight to do on the first two chapters, since there are less levels, and therefore you need more luck. If you've completed everything else and need to try for this specifically, do it on the third chapter.

Before attempting this, again assuming you didn't get it naturally while completing everything else, I recommend doing four things:
 

• Invest in Perk Slots at the Research machine in the hub. Any perks you equip here do count toward the 15 needed for this achievement. You can equip up to five perks in the hub if you have enough crystals, and that gives you a big leg up. I personally only had two unlocked and was able to get this achievement
• Even with at least one perk slot (but ideally more), equip the perk that gives you +3 Energy Cells per level you complete. Energy Cells will be key to this achievement, as you'll see below
• Invest in at least one upgrade for the Research that lets you start each run with +5 Energy Cells. I just invested one point into this, and it was enough
• Save up some crystals. Ten or fifteen, at a minimum, is what you'll need, but I would recommend having a solid 30-40 on you, just to be safe. More on that below

With that set up, the important thing to realize for this achievement is that the key to getting 15 perks isn't to focus on the missions with perk rewards (a star on them). While you obviously do want to take routes that have perk rewards, the most important thing to gear your route around are the levels with the shops (anvil icon) on them. It is these shops where you can make the most progress towards this achievement. Every shop has three perks for sale: two for 10 Energy Cells, and one for 20 Energy Cells. Also be aware that every shop lets you buy 15 Energy Cells for 5 crystals. This is why it's important to keep some crystals on hand while trying for this achievement. Because of this setup, you want to gear your route around every shop on the map, so you go to as many as possible. It's practically guaranteed you'll be able to do two shops, which may be enough, but on my successful run I got three.

So, your goal is going to be to get to every shop you can, and to have at least 25 Energy Cells on hand when you get there (because you can buy another 15 Energy Cells with 5 crystals, and that'll give you the 40 Energy Cells you need to buy all three perks for sale). This is why the above bullet points mention starting with Energy Cells and gaining more after each level, to be sure you always have enough to buy all available perks. The other thing you can do to increase Energy Cell count is to try to do 'Fix the Inhibitor' missions. Every time you actually repair the inhibitor at the end of these stages, a bunch of Energy Cells drop for you to pick up, usually at least five. Everything helps, so keep an eye out for those levels.

To summarize:
 

• Load out with as many Energy Cells and pre-equipped perks as you can, and bring crystals with you
• Map out your route to go through as many shops as you can
• Prioritize levels that give perks as rewards
• Of those levels, prioritize 'Fix the Inhibitor' levels, since they give guaranteed Energy Cells