This bug has got it all. Papery defenses, turtle speed, unhelpful abilities, lackluster attack and a strangely offensive design.
Bug Bite- STAB boosted by Technician.
Aerial Ace- Coverage also boosted by Technician.
Brick Break/Power Up Punch- Fighting
Sword's Dance/Protect- Not a lot of options.
In theory, Kricketune is a Sword's Dancer (role he fails least horribly at.)like Scyther. However, Scyther is infinitely superior (not even Scizor!)to this wannabe cricket(more phrases I never imagined I'd use). In fact, they share the same abilities! This is the best moveset Kricketune can have which brings me to the nature and EVs. Give it a Jolly nature and 252 Spe/128 Atk/128 HP.