This game is pretty self explanatory. You take the boat cruise as usual, but now you use the Hero's Bow rather than the Pictograph Box. Koume flies around and holds a target below her broomstick. You want to avoid hitting Koume herself, since if you hit her ten times, you'll have to start over. Each time you hit the target, it will reappear after a moment. You only need twenty points to win this mini-game, so after that, getting a higher score is just for fun.

Some tips that may help would be to press the button rapidly (though that's dangerous for hitting Koume) or to aim where you think the target will be next and release the button once the target is in your line of sight.
 

Pick up a dog and bring it Mamamu Yan. Place a bet of anywhere from 10 to 50 Rupees and watch the speedy little devils go at it!

This game is one of great chance, mostly not in your favor. There tons of little doggies to choose from, but only a few are actually fast. Even if you pick a fast one, it may get caught behind some of the others and you'll still lose your bet. To make the entire experience much easier on yourself, wear the Mask of Truth when picking your pooch to hear their thoughts. When you get one that says something like:
"There's no way I'll lose!"
"I feel unstoppable!"
"My paws feel lighter than air!"
you've found your pup. Bet as much as you can for easy money. Your winnings are not guaranteed since the puppies will block each other, but you'll at least break even if not come out ahead each time if you pick a faster breed.
 

Shoot the red Octoroks for one point each. Avoid hitting the blue ones (they reduce your remaining time). That's really all there is to it. The pattern is different for each file (mine will be different than yours) but it doesn't change within the game. After a few tries, you should memorize the Octoroks' locations. The only other advice I can give is to work your way from left to right or vice versa so that you take them all out in a swooping motion rather than jerking back and forth.
 

Shoot any enemies you see for points. Mad Scrubs (center) give little points but they appear in consistently large numbers as long as you kill all of them each time. Deku Scrubs (trees on either side) will appear occasionally, giving additional points. Guays (crows) give medium points and often come in batches. They fly past a few times, so don't worry if you miss them on their first pass. Occasionally Wolfos will run across the area, give you a whopping 100 points each, so be sure to get those in particular!

My advice is to focus on the Mad Scrubs in the middle. As long as you kill all of them, they'll continually appear in groups of 5. Missing one and allowing it to burrow will stunt your point buildup by quite a lot. Try to keep your bow aimed towards the middle for the most part. Don't go to the side for crows or Deku Scrubs unless you've already got everything else in the middle taken care of.
 

This game uses floating platforms with Deku Flowers on them to form a mad race to collect Rupees. If you run out of time or touch the floor, you're out. It can be really disorienting at first, but you should get the hang of it pretty quick. Dive into the Flowers with and release to fly around. Try to fly to where you know a platform will be by the time you get there. Make good use of to drop down onto the platforms before your "air time" runs out.

The first day, the platforms go up and down. The second day they move horizontally in circles. The final day, they do both. Personally, I think the second day is the hardest.
 

Day 1: Bombchu Bowling.

Day 2: Bomb Baskets.

Day 3: Target Shooting.

This game revolves around the central, rotating platform that goes up and down and steadily speeds up. You have a limited time to play and you're out if you run out of time or fall off the platform. There's three games you can play, one on each day. For all of them, either try to focus on one target at a time or aim at whichever one you're currently facing.

Day 1: Bombchu Gallery
By far the hardest of the three in my opinion, you can lay up to four Bombchus at a time which will scurry up the walls and explode. I recommend taking out the higher ones first (while the platform moves slow), by aiming a little before where you think it'll go and laying down three Bombchus at a time. If you miss (or suspect you will miss) begin walking right and try again. After all four of the higher ones are taken care of, shift to the lower targets.

Day 2: Bomb Baskets
I suggest working your way from right to left, working on only one or two baskets at a time. Try to toss at the higher baskets when the platform is high and the lower baskets when the platform is low.

Day 3: Target Shooting

Glitch.

Either line yourself up and release once it comes into your line of sight or mash the button like crazy and focus on moving your stream in the right direction.

There is only one other tip I can give you: hit Honey & Darling! When you damage them, it makes a dialog box appear that says "Hey, that hurts!" When it does this, it pauses the timer temporarily. You can do this for all of the games and is particularly useful for the Bombchu and Archery games to either smack them, then lay/shoot/toss, repeat, or to simply hurt them while you're waiting for your target to come into view. If you're having a hard time with this mini-game, I highly recommend you take advantage of this "glitch" since it can save a lot of headache. Just be warned that by using explosives near you, it'll push you back (potentially off the platform).