Capcom Arcade 2nd Stadium

The free game you get with Capcom Arcade 2nd Stadium is Son Son, a side-scrolling shooter of sorts. Aside from not having to pay anything, it is a quick completion with Timed Challenge, and you can even use rewind in this mode at the cost of the timer still counting up. Playing through Son Son on Timed Challenge Mode, and by using a decent amount of rewinds to adjust my position to avoid death, I completed Son Son in 14 minutes with a score of 577K. The base CASPO earned was 60K, more than enough for this achievement and the lesser CASPO Challenge achievements.

However, you get several boosts by completing the game (getting from area #20 to area #1 and grabbing the scroll). This includes completing the game, no continues (Son Son doesn't allow continues, AFAIK), time and rank bonus, and possibly the 2x "Campaign" bonus if you play during a week that covers Shooter/Puzzle/Sports games. These are multiplicative - If you had 2x, a 2x, a 1.5x, and another 1.5x bonus, that'd end up with 9x the CASPO bonus at the end. After it was said and done, I got 400K CASPO for a 14-minute run with 577K score.

As far as actual gameplay tips for Son Son - there's a setting for rapid fire shots. I personally set this to , as well as having the fire speed at Normal. I tried to be near the middle floors, a little right of center so that my shots could hit enemies that came onscreen at my level but being able to retreat as needed. The enemies that tended to be problems were:

• Dragonflies, who would fly after you at varying angles at a decent speed.
• Yellow flies, which homed in on you while circling around.
• Bats, since their wave motion usually covers several of the middle floors.
• Gnomes, like the rock golems but they could also throw spears at you.

There are also the 3 cloud demons that are worth lots of points; with rewind, you should be able to knock them out with rapid fire before they run into you.

Also, there's a timer for the castle segments. If you do not destroy all the skull gates, you eventually move forward anyway, but you do not get the 4,000 point bonus item as well as using up extra time for the timed challenge. It is up to you whether you want to break all the doors down, or stay safe, even with rewind.

I play king of dragons on time attack mode
I used a lot of continue and cleared the game.

I tried to pick up money items as much as possible

Score: 1698200pts
Clear Time: 47:21.63

I got 134,499CASPO!