Do the certain requirements to unlock things in Sensei's Swag.

Item	How to unlock
Bamboo Shoot [BLADE]	Play a full game of Zen Mode every day for 5 days.
Butterfly Knife [BLADE]	Get a combo with a Strawberry 40 times.
Calligraphy Brush [BLADE]	Get 50 points in Classic Mode without slicing 2 of the same fruit in a slice.
Cherry Blossom [BACKGROUND]	Purchase for 5000 Starfruit. (Grinding is a must unless you can tolerate microtransactions)
Chinese Zodiac [BACKROUND]	Slice 384 peaches (lifetime).
Cloud Kicker [BLADE]	Play one game of Online Versus Mode.
Cloudy Skies [BACLGROUND]	Get a score of 200 in Arcade Mode after bonuses.
Disco Blade [BLADE]	Slice 50 Bannanas.
Flame Blade [BLADE]	Get a combo in Zen Mode after the timer stops.
Fruit Ninja [BACKGROUND]	Get a score of 125 in Clasic Mode, and do not drop a fruit the entire time.
Great Wave [BACKGROUD]	Slice 150 Watermelons.
Gutsu & Truffles [BACKGROUND]	Slice a Starfruit in a combo.
I Heart Sensei [BACKGROUND]	Read 3 of Sensei's Fruit Facts. [Basically lose 3 times]
I Heart Sensei [FULL VERSION]	Read 3 of Sensei's Fruit Facts that are about Strawberries.
Ice Blade [BLADE]	Slice 20 Freeze Banannas in Arcade Mode.
Kign Dragon [BACKGROUND]	With Bomb Deflects active, play Arcade Mode 6 times. DO NOT use the Bomb Deflects. (Requires Gutsu's Cart)
King Dragon Blade [BLADE]	Slice a Dragonfruit in Classic Mode.
Lightning Bolt [BLADE]	Purchase for 10,000 Starfruit. (Grinding is a must unless you can tolerate microtransactions)
Mr. Sparkle [BLADE]	Lose Classic Mode with a score of 42.
Mr. Sparkle [FULL VERSION]	Slice 3 pineapples in a row in Clasic Mode.
Old Glory [BLADE]	Lose Classic Mode with a score of 50.
Parchment [BACKGROUND]	Get 20 total bonuses in Arcade Mode, without any repeats.
Party Time [BLADE]	Slice nothing but the Strawberries in Arcade Mode.
Piano Blade [BLADE]	Get 100 Critical Slices.
Pixel Love [BLADE]	Follow Halfbrick Studios on Facebook or Twitter.
Pixel Love [FULL VERSION]	Get 50 combos in Classic mode.
Rainbow Blade [BLADE]	In Zen Mode, get 6 Peachy Times. (Requires Gutsu's Cart)
Sakura Slicer [BLADE]	Purchase for 10,000 Starfruit. (Grinding is a must unless you can tolerate microtransactions)
Storm Castle [BACKGROUND]	Purchase for 3000 Starfruit. (Grinding is a must unless you can tolerate microtransactions)
The Firecracker [BLADE]	Lose Classic Mode with a score of 208.
The Shadow ]BLADE]	Get a score of 175 in Zen Mode while upside-down. [Be sure to lock it]
Water Blade [BLADE]	Play 15 games with Berry Blasts active. (Requires Gutsu's Cart)
Yin Yang [BACKGROUND]	Slice 75 Passionfruits.