The Wales manager has conceded his team fell beneath their previous high standards last weekend in their 1-0 victory in Kazakhstan.
The win kept Wales in the hunt for automatic World Cup qualification from their group, but five days on from the game in Astana, Bellamy has admitted he was left unsatisfied by the manner in which his team faded.
The friendly fixture against Canada in Swansea - which comes just 48 hours after Belgium thumped Kazakhstan 6-0 at home - is an opportunity for the Wales boss to attempt a re-set.
But the match - against opponents who are ranked 28th in the world, three places above Wales - also means the potential for embarrassment.
Wales have also chosen a friendly against England on October 9, four days before the crunch qualifier at home to Belgium.
“I want us to really be so intense, and I have to be honest, in the Kazakhstan game, we were not,” said Bellamy.
“All those habits allow us to become a good team. Because if we do not do that, we get exposed.
“We're not good enough to not do it. So that's why, when you see these types of games, like Canada, the learnings from it, it's so important for us to be able to improve.
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“I chose them. Give me the toughest games. I'm fully aware I could get beaten and get my arse kicked.
“But what I would gain from playing a lesser team? This is a tough game with intensity and let's see where we are. It gives us a good opportunity to get better.”
Since Bellamy took over from former manager Rob Page 14 months ago, he has managed to steer an impressive course - achieving results, whilst also bringing through a number of new faces, such as Dylan Lawlor who made an assured debut last week.
In fact, the former Liverpool and Newcastle striker has won 54.5% of his matches as Wales manager (six out of 11), giving him the best win percentage of any permanent Welsh manager in history.
Despite that, however, Wales will need to win their remaining three matches - at home to Belgium, away to Liechtenstein, and home to North Macedonia and even that may not be enough to top the group.
Anything less that first place and they will haven to navigate away to next year’s finals through the play-offs.
“We've just got to be the best we can be and wherever that takes us, it takes us,” added Bellamy.
“Can we win every game we play? I can't give you those scenarios and I can't answer them. All we can do is be the best we can be, and hopefully that's enough to give us the result on the day.
“The Canada game is one that really fitted us and it was nice to get it the Tuesday after the trip to Kazakhstan. Monday would have been really difficult for us.
Also, the opportunity of playing England, at Wembley. Never underestimate it. It’s amazing.”
The match against the Canadians at the Swansea.com Stadium will be the first time Wales have played in front of a crowd in the city since 2013.
They did play at the stadium November 2020, during the Covid lockdowns, in Page’s first match in charge - a 0-0 draw against the USA.
Now, 14,000 tickets have already been sold but Bellamy is hopeful the remaining 6,000 will be snapped up before kick-off.
“Everywhere we go, it's got to be sold out. If it isn’t, I’m not happy. The players deserve that.
“It doesn’t come from just one area, it’s the same when we’re in Cardiff. Everyone comes from everywhere to get there.
“So if you're from Cardiff as well, you have to get down there to Swansea. That's how I see it.
“I believe it adds to our players, it helps them. I believe national teams, countries like ours, should be playing in front of full stadiums.”
