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