Yup, and yes of course I'm sure it works. I plugged my Bubble Bobble 3 cart back in after removing the pins and it works perfectly.Technically you only need to remove the plastic, but it's faster and easier to just clip the entire pin like Jassin did. The pins aren't used for anything.
People who take their time removing just the plastic are wasting time IMO...
Slap that ball bit on the dremel and plow it right up the side shredding pins and plastic in the process.
Mod should take 5mins if even that long.