Each other player will sacrifice a creature each time one of those abilities resolves
Legality depends on the tournament format -- Madolchepalooza can be legal in some formats and banned or restricted in others
Artifact Dollhouse of Horrors , , Exile a creature card from your graveyard: Create a token that's a copy of the exiled card, except it's a 0/0 Construct artifact in addition to its other types and it has "This token gets +1/+1 for each Construct you control." It gains haste until end of turn
Special Summons only came once in a while and Trap Cards could remain on the field for more than one turn
However, they are still referred to by their Japanese names, rather than the English names printed on the cards
By December 2008, Konami issued a press release announcing it was retaking full control of all TCG operations, ending the Upper Deck arrangement