Hi.
Your only missing one world I believe. To unlock it go and look in the volcano, though be ware since the minigame for it is a tough one.
As to the maths questions, well I'll say as I've said before calm down, don't let the music make you panic, and also try working out the somes in your head when not playing, try and guess which ones you have wrong and then go back and think what they should be.
Really it sort of amuses me that people will try and try and try again with the turtle raise or pearl diving or some of the other tough games, but when it gets to mathematics request changes.
Really though there is nothing impossible in the games, i went from not being able to finish them to scoring in the thirties, so it definitely can be done, just perciveer.
With the mastermind, you just need to treat it like a number guess, it's not too bad when you get the hang.
With the cards, again, just try to memorize which card is at which position and get pairs, for example if you go one which is a heart and three which is a club, and then the computer chooses 9 which is a club and 14 which is something else, you go 3 for the club and then 9 for the next club, then if your next card is a 5 which is a heart go 1.
It's really not too bad provided you can recall where the cards are, though you can occasionally get unlucky in terms of who turns over which.
As regards the battle mode I'll explain how it works.
First, what your trying to do is reduce your opponent's hitpoints by playing attack cards. however, you can't just play ultra powerful attacks streight off, you have to level up to them.
If you start off as one type, like say water type, you'll earn one level in each type for every turn you stay in it and every water card you play, this will let you play higher level attack cards.
not all cards are attacks though. Some increase your level, some give your opponent curses like poison or confusion or paralysis, some reduce curses on you, others make you more powerful, either by raising your level or raising your ability to do one sort of damage such as physical or special. Some cards even let you draw more cards from your deck, giving you more chances to play the next card you want.
thus basically you need to try and level yourself up and hurt your opponent with powerful attacks, while stopping them from hurting you.
just remember to check each card with the e key before playing and you should get the principle.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)