So, I like achievements. I also like Pokémon. Here are some achievements I've created to maybe make the game more fun for you:
 
Nothing but Time - 10p
Spend 50 hours of playtime.
 
It's Not How You Play the Game - 25p
Beat the Elite Four without every losing a battle throughout your playthrough.
 
I Work Alone - 50p
Beat the Elite Four without ever leveling your starting Pokémon past level 10.
 
Math is on my Side - 10p
Hit five super-effective attacks in a row in one battle.
 
Flashing is for Pervs - 10p
Navigate a dark cave without using Flash.
 
You'll be adorable forever! - 20p
Level your starter Pokémon to level 50 without ever evolving it.
 
You're the real monster! - 20p
Cause 100 of the same Pokémon to faint.
 
Barry Bonds would be proud - 10p
Use fifteen stat boosters on one Pokémon.
 
Stop Cheating - 30p
Beat the Elite Four without any of your Pokémon taking damage.
 
Hello Goodbye - 10p
Take part in 10 trades involving different Pokémon.
 
It Means No Worries - 50p
Collect All Eight Badges with a Kakuna and a Rattata in your party.
 
Team Rocket Jr - 10p
Use three poison type Pokémon against the Elite Four in one playthrough.
 
Extinct - 20p
Cause a Legendary Pokémon to faint in the wild.

I am glad these are not in the game, because I could totally see myself spending way too much time trying to get them all.