1460716983-c4d85f0a-50d9-4bc2-a6c2-fc5228d55ee4

1. A method comprising:
conducting game play at a gaming device by:
generating a first plurality of symbols;
moving at least a second plurality of symbols from the first plurality of symbols to a matrix;
positioning each of the second plurality of symbols within the matrix;
generating at least one outcome based on the positioning;
awarding a payout based on the at least one outcome;
scrolling the matrix, such that filled portions of the matrix are no longer usable in game play.
2. The method of claim 1 wherein the second plurality of symbols comprises a subset of the first plurality of symbols.
3. The method of claim 1 wherein generating the first plurality of symbols comprises selecting symbols from symbols displayed on slot machine reels.
4. The method of claim 1 wherein conducting game play at the gaming device comprises conducting a basic game and a meta-game.
5. The method of claim 4 wherein generating the first plurality of symbols comprises generating the first plurality of symbols as part of the basic game.
6. The method of claim 5 wherein positioning each of the second plurality of symbols within the matrix forms part of the meta-game.
7. The method of claim 6 further comprising awarding a payout for the basic game based on outcomes of the basic game.
8. The method of claim 6 further comprising awarding a bonus payout for the meta-game based on positions of one or more symbols within the matrix.
9. The method of claim 1 wherein scrolling the matrix, such that filled portions of the matrix are no longer usable in game play comprises scrolling the matrix off the bottom of a display.
10. The method of claim 8 comprises awarding a bonus payout if symbols are arranged in a predetermined row or diagonal manner.
11. A gaming device comprising:
a display;
a user interface; and
a controller operatively coupled to the display and the user interface and adapted to:
generate a first plurality of symbols;
present the first plurality of symbols on the display;
select a second plurality of symbols from the first plurality of symbols;
position the second plurality of symbols in a matrix on the display;
determine if a player is due a payout based on the position of the second plurality of symbols within the matrix; and
scroll the matrix in such a manner that symbols within the second plurality of symbols are removed from the display.
12. The gaming device of claim 11 wherein the display comprises a first display and a second display.
13. The gaming device of claim 12 wherein the controller adapted to present the first plurality of symbols on the display is adapted to present the first plurality of symbols on the first display.
14. The gaming device of claim 11 wherein the controller is further adapted to provide a basic game and a meta-game to a player through the use of the symbols.
15. The gaming device of claim 11 wherein the controller adapted to present the first plurality of symbols on the display does so by presenting symbols as part of a reel in a slot machine style game.
16. The gaming device of claim 11 wherein the gaming device comprises a mobile terminal.
17. A method comprising:
in a basic game, producing a plurality of symbols;
determining a first outcome for the basic game based on at least a portion of the plurality of symbols;
moving a subset of the plurality of symbols to a matrix;
positioning the subset of the plurality of symbols within the matrix;
determining an outcome of a meta-game based on the positioning; and
moving the matrix as symbols fill the matrix.
18. The method of claim 17 wherein moving the matrix comprises scrolling the matrix.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A lightweight protection element and filter of the mattress type comprising an external containment structure, a three-dimensional internal structure with a high cavity index, a granular filler material inside the containment structure, the granular filler material maintaining the thickness of the three-dimensional internal structure under load, and engagement means distributed over the external containment structure in order to engage predetermined portions of the external containment structure with each other.
2. An element according to claim 1, wherein the external containment structure comprises a lower portion and an upper portion, the engagement means engaging the lower portion with the upper portion.
3. An element according to claim 2, wherein the engagement means comprises mechanical engagement means.
4. An element according to claim 3, wherein the mechanical engagement means comprises at least a pair of plates, at least one fixing bar, and at least a pair of blocks which can selectively be engaged with ends of the fixing bar.
5. An element according to claim 4, wherein the external containment structure has ends which are fixed to each other so as to close the protection element and filter, and to retain the three-dimensional internal structure with a high cavity index and the filler material.
6. An element according to claim 1, wherein the three-dimensional internal structure with a high cavity index comprises a non-woven geotextile andor monofilaments of heat-sensitive material.
7. An element according to claim 2, wherein the lower portion and the upper portion of the external containment structure are constructed from at least one of the following synthetic materials: woven geotextiles, woven geogrilles, geomembranes, geonets.
8. An element according to claim 2, wherein the lower portion and the upper portion of the external containment structure are constructed from at least one of the following natural materials: reed matting, biodegradable bionet, straw, coconut fibre, wood shavings.
9. An element according to claim 1, and further comprising a reinforcement element in order to increase, during use, the resistance to traction of the element.
10. A lightweight protection element comprising:
a containment structure comprising a bottom sheet and an upper portion disposed above the bottom sheet, the bottom sheet and upper portion being disposed to define a space therebetween;
a plurality of engagers each comprising members on the bottom sheet and upper portion and engaging predetermined portions of the containment structure with each other;
a three-dimensional internal structure with a high cavity index disposed in the space in the containment structure and comprising monofilaments of heat-sensitive material distributed throughout the space within the containment structure; and
granular filler material in the space within the containment structure.
11. An element according to claim 10, wherein each engager comprises two opposing plates, a fixing bar attached to the plates and having a first end and a second end, and a first block attached to the first end of the fixing bar and a second block attached to the second end of the fixing bar.