It is just a basic slack bot with some additional commands like roll dice and flip coin. It was easy to complete it.

To try just click “Try project” button it will redirect you to slack channel named “nobita-bot-demo” there try using the following commands:-
/nobita-help - To see all slash commands.
/nobita-ping - Check bot latency.
/nobita-catfact - Get a cat fact.
/nobita-joke - Tells a joke.
/nobita-fact - Tells a fact.
/nobita-coinflip - Flips a coin.
/nobita-rolldice - Rolls a die.