Danny Lennon's men lifted their first major piece of silverware in 26 years as they came from behind in dramatic style to beat Hearts 3-2 in the Hampden final in March. That afternoon still rankles with the 20-year-old striker who joined the Jambos on loan from Liverpool in January.
Ngoo said: "Everyone is up for it, everyone is ready to go. The cup final was unfortunate but Saturday is another chance to play them again and beat them, especially with the crowd that will turn up. I think we have a good chance."
Ngoo, who started his career at Southend, admits it could be "difficult" to extend his loan period at the club due to finances.
The Edinburgh club are about £25million in debt, with £15million of that owed to Ukio Bankas, who learned on Thursday that a Lithuanian court ruled that bankruptcy proceedings should commence against them.
With the future of Hearts subject to ongoing speculation, Ngoo is set to return to Anfield for pre-season training before he makes any decisions about the next step in his career.
"After pre-season with Liverpool we will see what happens," he said.
"As a young player, I need to keep working hard at things to make me a better player.
"I think I have got stronger as a player and my knowledge has got a bit better as well. I love Edinburgh, it is an experience any young player would ask for.
"It is not what I expected it to be. I expected everyone to be serious but everyone is bubbly, happy and they try to help one another the best way we can and get the results."