Here is the full list of all 15 Montaro achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Unlock the suit.
Collect 802 pantsu.
Purchase the orange box.
So bag, many happy, wow.
unlock Banana.
Unlock moon moon.
I'm not a doge.
Collect 1208 Dogecoins.
Snipe 30 crows.
Stunned.
Drop the doge.
Interrupt the doge line.
Press Ð to rain.
Deal with it.
Wow.