How do I understand the three modes?

• Green-Starter Mode: Timed feeding with quick access to treats. In every 10-minute play session, the pet will receive rewards at the start of play and after completing up to 6 interactions.
• Blue-Advanced Mode: Timed feeding with quick access to treats. In every 10-minute play session, the pet will receive rewards at the start of play and after completing up to 15 interactions.
• Purple-Expert Mode: Irregular feeding. In every 10-minute play session, the pet will only receive a reward after completing 60 interactions.