To cheat Gnome, do the following: when you are at home or on a lot, press L1(2), R1, X(2), Up.
If you want to get lots of bonuses, then read the following information and try to get what you want!
Go to the codes screen which is under the Game Options menu. Now you can enter the codes you see below to unlock the bonus you need (there are two codes for each bonus).
Get collars!
Blue Camouflage Cats: ZZZ11ZZZHQ11Q91ZB1A (EEGJ2YRZZQ1IQ9QHA64)
Blue Camouflage Dogs: ZZZ11ZZZHZ1AQ91ZB1A (EEGJ2YRZZZ1RQ9QHA64)
Blue Star Cats: ZZZ11ZZQ9Z11Z91ZB1A (EEGJ2YRQQZ1IZ9QHA64)
Blue Star Dogs: ZZZ11ZZQHQ11Q91ZB1A (EEGJ2YRQZQ1IQ9QHA64)
Black Dot Cats: ZZZ11ZZZ9Q11Q91ZB1A (EEGJ2YRZQQ1IQ9QHA64)
Navy Hearts Dogs: ZZZ11ZZQ9Z11Q91ZB1A (EEGJ2YRQQZ1IQ9QHA64)
Orange Diagonal Cats: ZZZ11ZZQ9ZA1Q91ZB1A (EEGJ2YRQQZAIQ9QHA64)
Black Dot Dogs: ZZZ11ZZQHZ11Q91ZB1A (EEGJ2YRQZZ1IQ9QHA64)
Black Smiley Cats: ZZZ11ZZQ9Z1AQ91ZB1A (EEGJ2YRQQZ1RQ9QHA64)
Green Flower Dogs: ZZZ11ZZQHZ1AQ91ZB1A (EEGJ2YRQZZ1RQ9QHA64)
Navy Hearts Cats: ZZZ11ZZZ9Z11Q91ZB1A (EEGJ2YRZQZ1IQ9QHA64)
White Paws Dogs: ZZZ11ZZZ9Q11Z91ZB1A (EEGJ2YRZQQ1IZ9QHA64)
White Zebra Stripe Cats: ZZZ11ZZZHQ11Z91ZB1A (EEGJ2YRZZQ1IZ9QHA6)
White Zebra Stripe Dogs: ZZZ11ZZZHZ11Q91ZB1A (EEGJ2YRZZZ1IQ9QHA64)
Orange Diagonal Dogs: ZZZ11ZZZ9Z11Z91ZB1A (EEGJ2YRZQZ1IZ9QHA64)
Pink Vertical Strip Cats: ZZZ11ZZQ9QAAQ91ZB1A (EEGJ2YRQQQARQ9QHA6)
Pink Vertical Strip Dogs: ZZZ11ZZZHZA1Q91ZB1A (EEGJ2YRZZZAIQ9QHA64)
White Paws Cats: ZZZ11ZZQ9Q1AQ91ZB1A (EEGJ2YRQQQ1RQ9QHA64)
Black Smiley Dogs: ZZZ11ZZZ9QAAQ91ZB1A (EEGJ2YRZQQARQ9QHA64)
Blue Bones Cats: ZZZ11ZZQHZAAQ91ZB1A (EEGJ2YRQZZARQ9QHA64)
Blue Bones Dogs: ZZZ11ZZZHZ11Z91ZB1A (EEGJ2YRZZZ1IZ9QHA64)
Green Flower Cats: ZZZ11ZZZ9ZA1Q91ZB1A (EEGJ2YRZQZAIQ9QHA64)
Change fur colours!
Blue Cats: ZZZ11ZZQHZA1Q91ZB1A (EEGJ2YRQZZAIQ9QHA64)
Pink Dogs: ZZZ11ZZZ9Z1AQ91ZB1A (EEGJ2YRZQZ1RQ9QHA64)
Blue Dogs: ZZZ11ZZQ9Q11Z91ZB1A (EEGJ2YRQQQ1IZ9QHA64)
Neon Green Cats: ZZZ11ZZZHQA1Q91ZB1A (EEGJ2YRZZQAIQ9QHA64)
Neon Green Dogs: ZZZ11ZZZ9QA1Q91ZB1A (EEGJ2YRZQQAIQ9QHA64)
Deep Red Cats: ZZZ11ZZQ9QA1Q91ZB1A (EEGJ2YRQQQAIQ9QHA64)
Deep Red Dogs: ZZZ11ZZQHQ1AQ91ZB1A (EEGJ2YRQZQ1RQ9QHA64)
Goofy Cats: ZZZ11ZZQHQ11Z91ZB1A (EEGJ2YRQZQ1IZ9QHA64)
Goofy Dogs: ZZZ11ZZZHZAAQ91ZB1A (EEGJ2YRZZZARQ9QHA64)
Green Cats: ZZZ11ZZZ9QA1Z91ZB1A (EEGJ2YRZQQAIZ9QHA64)
Green Dogs: ZZZ11ZZQHQA1Q91ZB1A (EEGJ2YRQZQAIQ9QHA64)
Neon Yellow Cats: ZZZ11ZZZHQAAQ91ZB1A (EEGJ2YRZZQARQ9QHA64)
Neon Yellow Dogs: ZZZ11ZZQ9QA1Z91ZB1A (EEGJ2YRQQQAIZ9QHA64)
Pink Cats: ZZZ11ZZQHZ11Z91ZB1A (EEGJ2YRQZZ1IZ9QHA64)
Light Green Cats: ZZZ11ZZZHQ1AQ91ZB1A (EEGJ2YRZZQ1RQ9QHA64)
Light Green Dogs: ZZZ11ZZZ9Q1AQ91ZB1A (EEGJ2YRZQQ1RQ9QHA64)
Purple Cats: ZZZ11ZZQ9ZAAQ91ZB1A (EEGJ2YRQQZARQ9QHA64)
Purple Dogs: ZZZ11ZZQ9ZA1Z91ZB1A (EEGJ2YRQQZAIZ9QHA64)
Unlock fur patterns!
Bandit Mask Cats: ZZZ11ZZQHZA1Z91ZB1A (EEGJ2YRQZZAIZ9QHA64)
Bandit Mask Dogs: ZZZ11ZZQHQAAQ91ZB1A (EEGJ2YRQZQARQ9QHA64)
Panda Cats: ZZZ11ZZQHQA1Z91ZB1A (EEGJ2YRQZQAIZ9QHA6)
Star Cats: ZZZ11ZZZ9ZAAQ91ZB1A (EEGJ2YRZQZARQ9QHA6)
Star Dogs: ZZZ11ZZZ9ZA1Z91ZB1A (EEGJ2YRZQZAIZ9QHA64)
Zebra Stripes Dogs: ZZZ11ZZZHQA1Z91ZB1A (EEGJ2YRZZQAIZ9QHA64)